1975 Whip
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OPERATOR'S MANUA L
1975WHIP
DESIGNED & MANUFACTURED BY
SCORPIOn InC.
CROSBY, M INNESOTA 56441
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CONGRATULATIONS
Welcome to Scorpion: THE SHAPE OF THINGS TO GO.
You've chosen the finest machine to be seen on the snows
this year, the 1975 Scorpion Whip.
To help you enjoy your machine to the fullest, this manual
has been prepared by its designers and engineers.
Read it thoroughly and carefully before operating your
Whip.
Keep the manual with the machine at all times for quick
reference.
It spells out in eosily~understood terms the normal main=
tenance procedures that will help keep your machine safe and
dependable.
Read it through . . . start your engine . . . and happy
snowmobiling.
TABLE OF CONTENTS
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IDENTIFICATION ..................................... 2
PRE·OPERATING TIPS ................................. 4
CONTROLS/INSTRUMENTS ............................. ?
MIXING FUEL ....................................... 10
BREAK·IN PROCEDURE ................... " ........... 11
STARTING PROCEDURES. .. " .. " ....................... 12
MAINTENANCE TIPS ...
. ". " ....................... 14
SERVICE INTERVAL CHART
........ ' ....... 15
SPARK PLUG REPLACEMENT ............. ""."" ......... 16
HEADLIGHT ADJUSTMENT .... " ....................... 18
BRAKE ADJUSTMENT. ................................ 20
SKI ALIGNMENT . . . . . . . . . - . . . . . . .................... 21
CARBURETOR ADJUSTMENT ........................... 23
THROTTLE CABLE ADJUSTMENT ........................ 24
BELT REPLACEMENT ........
. " .................. 25
TRACK ADJUSTMENT " ..... " ......................... 28
SUSPENSION ADJUSTMENT ........................ ·.... 30
BULB REPLACEMENT ................................. 31
TROUBLE SHOOTING ................................. 33
SUMMER STORAGE .................................. 37
PREPARATION FOR WINTER ........................... 38
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IDENTIFICATION
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The model and serial numbers on your machine are very im-
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portant and the identification plate should not be removed. It is
suggested that you record them in the space provided below.
The serial number is also embossed in the frame of the
machine. It is the same serial number as appears on the identification plate.
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Machine Serial Number
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Engine Serial Number
IMPORTANT: BE SURE YOUR SCORPION DEALER HAS REGISTERED
YOUR MACHINE BY SENDING THE WARRANTY CARD TO THE
FACTORY.
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3
PRE-OPERATING TIPS
PRE-OPERATING TIPS
Know the Federal, State and local laws pertaining to snow~
mobiling.
Register or license and insure your snowmobile.
Read your Operator's (Owner's) Manual before riding.
learn your controls. Know how to stop in an emergency. Check
all lights. Operate the throttle and brake controls several times
before you start the engine to insure that they are not frozen.
Provide inexperienced operators with proper instructions before
allowing them to use your snowmobile.
Clean your windshield with a clean cloth. Solvents or abrasive
cleaners will damage it.
When fueling, leave some expansion space in the tank. As you
run, heat from the engine will cause the gasoline to expand and
it may overflow the tank.
load your snowmobile within safe limits. Use a tow sled to carry
extra provisions.
TOOL POUCH
Recommended tools and spare parts to carry in your machine
are:
TOOLS
Screwdriver
Vise Grips
SPARE PARTS
Drive Belt
Spark Plugs
l/2 and 9/16 Open End Wrenches Headlight Bulbs
Taillight Bulbs
Rockwell Tool Kit
(Supplied With Snowmobile)
This list is minimal and should be augmented as additional or
special needs become apparent.
4
5
-SAFE DRIVING TIPS
CONTROLS AND INSTRUMENTS
Observe all Federal, State and local laws.
DESCRIPTION/FUNCTION
Take special precautions when loading your snowmobile on to a
trailer. Secure the machine firmly to the trailer when it is in
position. Be sure that the trailer lights operate.
Use both hands lor steering.
Observe your fuel supply regularly.
Keep your lights operable and free of snow when driving at
night.
Keep all protective guards, hoods and shields in place while
riding.
Maintain a safe distance between your machine and the one
ahead of you.
Keep your speed suitable for the operating conditions. Remem~
ber that ice requires a greater stopping distance.
Observe all posted snowmobile signs. Not all private landowners
allow snowmobiling on their property.
Stop and help a distressed snowmobiler. You may be in a similar
situation sometime.
When crossing roads or highwoys, always stop, look both directions, then cross at a 90 degree angle. Post guards when crossing
in groups.
BRAKE
LEVER
Keep your feet on the running boards while the machine is in
motion. Be especially careful when freeing your machine from
deep S'lOW,
Mentally practice what to do in an emergency, so that if a
situation should arise, proper reactions will be automatic.
When clearing the track of snow and ice, tilt the machine toward
the lei; running board. Keep hands and feet clear of the track.
Keep all persons clear of the area.
Never 9pen new trails at night. Follow established routes.
Avoid avalanche areas, railroad tracks, thin ice, ski sropes and
any other unsafe terrain.
•
/
PRIMER
Chasing or molesting wild animals while riding a snowmobile is
poor sportsmanship AND is illegal.
6
FUEL GAUGE
ENRICHING VALVE CONTROL
7
CONTROLS/INSTRUMENTS
DESCRIPTION AND FUNCTION
1: BRAKE LEVER- The brake
lever is located for convenient grip·
pmg act1on w1th the fmgers of the operator's left hand. When the
lever is ''compressed" toward the handle bar, braking action will
slow or stop the machine's forward action, depending on lever
force. The brake will release when pressure is removed from
7. SPEEDOMETER- The speedometer dial indicates the velocity
of the machine in miles per hour and total distance traveled in
miles and tenths of miles.
The dial face is "orange-lined" for caution from 40 MPH to 60
MPH and "red-lined" at 60 MPH and above.
lever. Note: (See MAINTENANCE Section for description of brake
adjustment)
At night, with LIGHTS on, the dial numbers are back lighted for
easy viewing. The numerals from 30 MPH and up are lighted red
as a reminder to slow down for safer night driving. REMEMBER!
Overdriving your headlight is dangerous.
2. HI-LOW BEAM SWITCH- This is a two position switch located
8. PRIMER · The primer, located on the left side of the console
in the brake lever bracket, adjacent to the driver's left thumb.
just below the tachometer is a piston type pump. Pumping the
primer puts fuel directly into the engine to aid the engine when
Push the switch to the "IN" position for low beam headlight. Push
·again and allow the switch to return to the "OUT" position for
cold-starting. (SEE STARTING PROCEDURE SECTION).
high beam.
9. ENRICHING VALVE CONTROL· The Enriching Valve Control is
3. BRAKE LIGHT SWITCH - The switch is located in the brake
lever brac~et, als?. It is actuated whenever you apply the brake.
It a~tomat1cally s1gnals other following snowmobiles, of your intention to slow down or stop by turning on a "stop light" at the
rear of the machine. No adjustment is needed for this switch.
4. THROTTLE LEVER -
The throttle lever is used to control the
speed of the engine. It is located on the handlebar convenient to
The _operator's _rig~t hand and is actuated by thumb pressure.
Engme speed 1s d1rectly proportional to the amount of lever
movement. When pressure is removed from the lever it
automatically returns to the idle position. Correct throttle c~ble
adjustment is explained in the MAINTENANCE Section.
5. SAFETY STOP SWITCH - All current model Scorpions have
been equipped with a Red Emergency Stop Switch located in the
th~ottle: lev~r brac_ket for right-hand operation. When depressed,
th1s sw1tch 1mmed10tely stops the engine.
To restart the engine, the switch must be again depressed in order to return to the released or run position.
NOTE: Check safety stop switch periodically to be certain that it
functions properly.
6. TACHOMETER· The engine RPMs are indicated in the range
from 0 to 10,000: The tachometer dial is back lighted for easy
v1ewmg dunng n1ght dnvmg. Caution orange highlights the dial
between 4,000 and 7,000 RPM. This range is slightly above the
normal RPM of the engine (6,750). Under some operating con·
?1t1ons,, the need~e may read here and is to be expected. The dial
IS r~d-l~ned startmg at 7,000 RPM and above. Operation in this
located on the
speedometer.
right
side of
the
console
just
below
the
The Enriching Valve increases the fuel-to-air ratio on the float
carburetor when the control is in the "UP" position. It will not
fun~tion as intended if the throttle lever is depressed. During
engme warm up, the control may be in the "UP" position. The
engine will not flood out. (See STARTING PROCEDURE).
10. RECOIL STARTER· The Recoil Starter handle is located on the
right side of the console. Pull outward to start the engine. (See
STARTING PROCEDURE SECTION). Never allow the handle to
"snap" back.
11. IGNITION SWITCH • The ignition switch is key operated for
security. Turn the switch to "ON" for manual start and normal
daylight running. Turn to 'liGHTS" for night driving. The "START"
position is used for starting engines with electric start only. The
switch is spring loaded so it will automatically return to "ON"
when released from the "START" position.
A lock-out feature is provided on "electric-start" sleds. This
prevents accidental re-engagement of the starter pinion into the
:ing gear of a running engine. In event of a false start, the
1gnition switch must be returned to "OFF" before you can again
engage the starter motor (turn key to "start" position).
Turn the ignition switch "OFF" to stop the eng-ine and remove the
key when leaving the machine unattended.·
.
reg1on IS hazardous to both the operator and the machine.
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MIXING FUEL
The two cycle engine tho~ powers your W~-HP requires that oil
be mixed with the gasoline for engine lubrication. Use clean,
fresh, regular (leaded) gasoline, 90 octane or higher for 340s.
Use premium gasoline in 400s and 440s.
NOTE: It is imperative to maintain the correct ratio. Too much oil
will cause spark plug fouling and excessive smoke. Too little oil
will cause engine damage from inadequate lubricati-on.
Scorpion Snowmobile oil is carefully formulated and packed in
special containers so that the addition of one container of oil to
five (5) gallons of gasoline will result in the correct gasoline/oil
mixture.
BREAK-IN PROCEDURES &
SUGGESTIONS
1.
Operate the engine at varying part throttle and light load for
the first ten {1 0) hours of operation.
2.
When "cold" starting, allow your engine to warm up approximately one minute before accelerating into motion.
3.
The carburetor has been preset at the Factory for adequate
fuel supply. If for any reason you feel some adjustment is
necessory, consult your dealer.
4.
Stop occasionally and look over your sled. Inspect the track,
skis, steering system, drive belt, exhaust system. Check the
fuel supply. Become familiar with your Whip.
Perform the following steps in mixing the fuel:
1.
2.
3.
4,
5.
6.
Put 2 1/2 gallons of gasoline in a clean container.
Add one can of Scorpion Snowmobile oil.
Shake the container vigorously.
Add the remainder (2'/, g<~llor.s) of gasoline.
Agitate the container thoroughly again.
Use a clean funnel with a fine metal screen to pour the fuel
mixture into the gas tank.
WARNING!!! GASOLINE IS DANGEROUS. DO NOT REFUEL
WHEN SMOKING, NEAR OPEN FIRES, OR WHEN YOUR ENGINE IS
RUNNING.
Always keep your fuel container and fuel system clean. Dirty fuel
can cause engine failure which might leave you stranded.
Do not attempt to mix gasoline and oil in your gas tank. Improper
mixing of the fuel/oil will result. Engine damage could occur.
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STARTING PROCEDURE
COLD START:
1.
Turn key to the "ON" position.
2.
Check Safety Stop switch. (Must be in run position)
3.
Pull "Enriching Valve Control" out.
4..
Pump the primer two (2) times (if machine is so equipped).
If it is necesSary to start your snowmobile when normal starting
systems are inoperative, use the following procedure:
5.
Grasp recoil starter handle,
mechanism, then pull sharply!
1.
Open the belt guard.
2.
Remove the nylon starting rope from your tool kit. NOTE: The
rope is suppiied with the machine. Always keep it in your
6.
pull
slowly
to
EMERGENCY STARTING
engage
Allow engine to run briefly, then push the Enriching Valve
Control in.
tool box.
WARNING!! DO NOT PULL THE STARTER ROPE TO ITS FULL EXTENDED POSITION OR ALLOW IT TO "SNAP" BACK INTO THE
HOUSING. DAMAGE CAN RESULT!
3.
HOT START:
4.
Pull the rope to start the engine.
1.
Turn key to the "ON" pOsition.
5.
Reposition the belt guard as soon as the engine is running.
2.
Check Safety Stop Switch.
3.
Grasp recoil starter handle,
mechanism, then pull sharply!
pull
slowly
to
engage
Slip the knotted end of the rope in the slot and wrap the rope
around the drum (counterclockwise).
NOTE: Practice this procedure at least once so that you will be
familiar with it if you ever are required to use it in an emerger1cy
situation.
FLOODED START:
1.
Be sure the key is "ON".
2.
Check Safety Stop switch.
3.
Depress the throttle lever all the way down!
4.
Grasp recoil handle, pull slowly to engage mechanism, then
pull sharply!
NOTE: Do not pull Enriching Valve knob up or pump primer
on a flooded engine!
WARNING!! HOLDING THE THROTTLE LEVER DEPRESSED MAY
CAUSE THE ENGINE TO "REV" UP AND ENGAGE THE CLUTCH I
THIS WILL CAUSE THE MACHINE TO START INTO MOTION. BE
PREPARED TO RELEASE THE THROTTLE LEVER WHEN ENGINE
STARTS. CONTROL YOUR MACHINE!
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TIPS
SERVICE
MAINTENANCE INTERVAL CHART
MAINTENANCE
1. Check over your snowmobile regularly. This will prevent
many problems from developing.
3. Check skis and other steering components regularly to in-
ITEM
sure that all bolts are tight and in good condition. Worn,
damaged or loose steering components are unsafe.
Brake
4. Frequently inspect the drive belt and replace it as necessary.
A belt that has been worn unevenly or "burned" because of
7. Be sure that all protective devices (hood, belt guard, etc.) are
in place before operating your machine.
8. If your safety stop switch has been used in an emergency
situation, the source of the malfunction should be determined and corrected before re-starting the engine.
9. Before checking track adjustment, be sure that the track is
free of all particles that could be thrown out while track is
rotating. Keep hands, feet and clothing clear of the track.
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NOTE: Special tools and training are required for such maintenance; see your Scorpion Dealer.
11. Check fuel tank filter regularly; a dirty or plugged filter will
cause engine damage. Remove filter, clean off any foreign
matter and blow filter out with air.
12. Do not run your engine at high RPM with the drive belt
removed or with the track raised off the ground. Either practice may be detrimental to the engine and hazardous to the
operator.
X
down strap only until it is snug against the tank. Overtightening will stress the tank.
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X
X
X
Chain- Sprockets
Covers-Guards
X
X
Drive Belt
X
X
X
Drive Clutch
X
X
Driven Clutch
X
X
X
X
X
Electric Start
Electric Wires
X
X
Engine
X
X
Fan Belt (Engine)
X
X
Fuel System
X
X
Lights
X
X
X
Nuts and Bolts- Tighten
Para-Rail Adiustment
Spare Parts
X
X
X
X
X
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X
X
X
Speedometer Cable
Steering
X
X
Suspension System
X
X
Throttle
X
X
Tools
X
X
Track
X
X
X
Track Adiustment
13. In the event of replacement of the gas tank, tighten hold-
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Muffler
10. Once a year, the driven and drive clutches on your
snowmobile should be disassembled, cleaned and checked
for worn parts. This service will keep your machine in top
operating condition.
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X
Chain Case Oil
prevent an emergency situation.
6. Exercise care in filling the fuel tank while engine is hot. Fuel
could drip or splash on hot engine or muffler and ignite.
Always stop engine before refueling.
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Carburetor
slippage may fail without warning. Always carry a spare to
5. Keep fingers from between sheaves of driven clutch when
removing belt. Movable sheave is spring loaded and could injure your fingers.
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2. Always turn off your engine before attempting to make
repairs.
X
X
Windshield-Clean
X
X
Skis-Wear Rods
X
X
IS
SPARK PLUG USE/REPLACEMENT
The appearance of the spark plug is an extremely important
guide to engine performance and proper spark plug application.
a.
A spark plug that is the correct heat range will show a light
tan color on the insulator nose. The plug is retaining the
correct amount of heat to burn off unwanted deposits, but
not enough to cause damage.
b.
A plug that is too cold will not retain sufficient heat to cause
cleaning of the insulator and electrode tip. There will be a
layer of unburned residue of gummy oil deposits or black
fluffy carbon or both. The color of the insulator will vary
from very dark brown to black.
c.
If the plug is too "hot", all the deposits will be burned off and
very possibly the insulator and electrode will begin to melt
from the heat. The insulator will be white, perhaps shiny,
with small gray, white, blue, green or purple dimples or bumps near the tip. The very tip will probably be distorted since it
is the hottest point. The electrode will be burned. An increased electrode gap in a very short time is an indication of
excessive heat.
IMPORTANT!! Always start your machine with Factory installed
Spark plugs will require your attention. The primary purpose of
the spark plug is to ignite the compressed gas/air mixture in the
cylinder, coverting it into thermal energy. The condition of the
plug will determine to a great extent, how efficiently the engine
will operate.
A spark plug must operate under a variety of engine conditions;
heat, pressure, vibration and foreign deposits. A single plug has
not been developed for all conditions.
plugs. Use hot plugs only if fouling is encountered and proper
carburetor adjustments do not correct the condition. Switch to
cold plugs if burned plugs are experienced and the condition cannot be corrected by other trouble shooting means. See Trouble
Shooting section.
The spark plugs should be checked for appearance and gap each
250 miles during the riding season.
It is recommended that new plugs be installed at the beginning
of every snowmobile season.
The plugs installed in your Scorpion at the Factory are the normal
heat range, i.e., best suited for all around normal service.
If prolonged low speed, light duty is expected, it is recommended
that a "hotter" plug be used to prevent plug fouling. (Consult
your dealer).
If prolonged high speed or other heavy duty usage is anticipated
switch to a "cold" plug to prevent pre-ignition and piston failure.
16
17
CHAIN CASE LUBRICATION
HEADLIGHT ADJUSTMENT
To properly adjust the headlight on your machine, do the
following:
1.
2.
Place the machine on a level, flat area.
Check to make sure that the hood fits down properly against
the stops and that the hood latches are securely in place.
3.
4.
5.
6.
Start the engine and idle, turn on headlight.
Sit on the machine in the normal operating position.
Place the high/low switch in the "high"" position.
The headlight should now be adjusted so that the center
beam pattern will illuminate an object at ground level ap~
proximately 300ft. directly ahead of the machine.
NOTE: All four (4) screws may hove to be adjusted to achieve
the proper headlight adjustment.
The drive chain adiustment is obtained automatically through the
use of tension springs and pads. No adjustment is necessary on
this model. The only maintenance that these tension springs and
pads need is that proper lubrication be had at all times in the
chaincase itself. Be sure you check the chaincase oil level
periodically (at least every 30 days).
The proper way to check the lubricant level is as follows:
•
1.
Remove inspection dip stick located on lower portion of
chain-case cover.
2.
Lubri-cant should register in the knurled section of the dip
stick with the dip stick screwed all the way in (machine sitting on level surface).
3.
If oil level is low, odd a medium weight oil (suggested SAE
1OW30) to proper level through dip stick opening.
4.
18
Replace the dip stick and tighten securely.
19
BRAKE ADJUSTMENT
To tighten the brake, back off the lower nut on the brake cable
bracket (located behind chaincase on support bar) and tighten
the top nut down until the desired engagement is achieved.
Rotate the driven clutch assembly to make sure that the clutch
turns freely and that the brake does not "drag". Always allow at
least y," free travel on the brake lever handle. Check the brake
SKI ALIGNMENT
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lining. Be sure that it is not worn out or covered with grease.
Whip snowmobiles have a degree of play in the steering system,
caused by working clearances in the ball joints, spindle to ski at-
taching bolts and spring to ski attachments. If this play is not
properly accounted for when aligning the skis, a "toe in" or "toe
out" condition could exist, which results in poor handling. Ski
alignment should be checked periodically, or whenever the
above conditions ore suspected. (See illustrations).
Check the chaincase air vent (bolt holding upper shaft and
bearing assembly} to be sure it is open.
1.
A thorough inspection of the entire steering system should
be performed before realignment of the skis. Check for loose
bolts, tie rods, steering arms, spindle to ski attaching bolts,
bent members, etc.
2.
With the machine resting on the floor or groUnd, grasp both
ski handles and pull skis together to remove the system
"play".
3.
Measure the distance between the inside edges of the skis,
both front and back (in area where springs attach to skis).
4.
This measurement should be equal.
5.
To adjust, loosen the lock nuts on the ,tie rods and rotate the
tie rods to correct the misalignment. Both tie rods should be
adjusted equally to assure that the handlebar will properly
align with the skis in the straight ahead position. This is very
important.
6.
Re~tighten lock nuts on tie rods.
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21
,..----
SKI ALIGNMENT I ADJUSTMENT
CARBURETOR ADJUSTMENT
IDLE SETTING
i':
Idle adjustment is accomplished by setting the idle mixture screw
first and then the idle speed screw when the engine is warm.
As the idle mixture screw is turned in progressively, the engine
RPM will increase to some maximum value, then decrease. The
idle mixture screw should be positioned at the point of highest
RPM.
The idle speed screw should be turned in or out as required so
that the engine RPM reads between 2,200 RPM and 2,500 RPM on
the tachometer.
HIGH SPEED SETTING
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The high speed setting is established by a fixed jet so that no adjustment is necessary.
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NOTE: If you live in an area above 5,000 feet elevation, see your
Scorpion Dealer for a high altitude jet.
TIE ROD ADJUSTMENT
STEERING STOP
IDLE SPEED SCREW
22
23
THROTTLE CABLE ADJUSTMENT
THROTTlE
ADJUSTING
NUT
\
BELT REPLACEMENT
The drive belt is a "wear" item. Periodically it will have to be
replaced because of slippage, wear or damage. To replace the
belt, perform the following steps:
1. Open the belt guard.
2. Standing on the left side of machine, grasp the moveable
sheave of the driven clutch (portion nearest steering), rotate
it clockwise and push sheave toward steering column.
3. Push the belt downward to hold the driven clutch open.
4. Roll the OLD belt over the edge of the moveable sheave and
remove from the driven clutch assembly.
5. Now remove the belt from the engine clutch.
6. Loop the new belt around the engine (drive) clutch.
7. Rotate the driven clutch moveable sheave clockwise again,
and push it open.
8. Roll the belt on to the driven clutch over moveable sheave.
9. Push the new belt, width wise, between the sheaves to hold
them open. Now roll the clutch sheaves (2) counterclockwise
until the belt is in place.
10. Reposition and secure the belt guard.
STEP 1
If adjustment is necessary to obtain proper throttle lever
STEPS 2,3
operation, an adjusting nut is provided at the lower end of the
throttle cable housing.
Proper operation of the throttle lever requires that the carbUretor throttle arm just makes contact with the idle speed screw
when the throttle arm is in the "relaxed" position. Be sure lock
nut is tightened after adjustment is made.
24
25
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BELT REPLACEMENT
BELT REPLACEMENT
STEP 4
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iii
STEP 9A
STEP 10
26
27
TRACK ADJUSTMENT
TRACK ADJUSTMENT
IN THE EVENT 'Track Jacks" are not available the following
procedure may be employed to achieve track tension:
Proper track tension is extremely important to assure long life of
all associated components and efficiency of the track drive
1.
system.
2.
3.
The track tension should be checked at the following intervals:
1.
2.
3.
When the machine is new (dealer preparation).
Alter the first l 0 hours.
Every 30 days, or 200 miles of operation_.
4.
At the start of each snow season.
4.
1.
2.
3.
4.
5.
6.
7.
I''
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v4
5.
The following procedure applies for adjusting track tension:
ili
The track should be at room temperature or should hove
been recently run to remove any stiffness, caused by cold
weather.
Elevate the rear of the machine.
Apply ten (I 0) lbs. of force or weight evenly distributed
across the track under both bogey wheels, located on the
third bogey axle, ahead of the rear idler wheels.
To make adjustment, loosen the lock nuts on the track adjustment bolts, as well as the rear suspension mounting
screws (rear of tunnel just below seotL and either tighten or
loosen the adjustment bolts to achieve the l
inch clearance between track and bogey wheels.
Remove ten (10) lbs. force or weight and retighten the lock
nuts on the track adjustment bolts, as well as the rear
suspension mounting screws.
'
]
I
The track should be at room temperature or should have
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been recently run to remove any stiffness, caused by cold
weather.
Elevate the rear of the machine.
Adjust each "Track Jack" to one and one quarter inch (I y, ).
Insert both "Track Jacks" between the track and both bogey
wheels, located on the third bogey axle, ahead of the rear
idler wheels. (Picture)
If the track is properly tensioned, the green ring should be
just visible or aligned with the lip of the cylinder. Adjustment
is required if the green ring is not visible, or is above the lip
of the cylinder.
To make adjustment, loosen the lock nuts on the track adjustment bolts, as well as the rear suspension mounting
screws {rear of tunnel just below seatL and either tighten or
loosen the adjustment bolts until proper adjustment is
measured on both "Track Jacks" (green ring aligned with lip
on cylinder).
Retighten the lock nuts on the track adjustment bolts, as well
as the rear suspension mounting screws.
I
I
II
I
NOTE: "Track Jack" is available at your Scorpion Dealer. It is an
accessory item.
28
29
SUSPENSION ADJUSTMENT
ELECTRICAL
The rear spring adjustment governs preload and should be
correlated with the weight of the rider or riders normally using
the machine.
HEADLIGHT BULB REPLACEMENT
Too much spring tension will result in a harsh ride and increases
the weight carried on the skis, thus increasing steering effort.
Too little spring tension will result in the bottoming out of the
suspension, a harsh ride and shortened life to the suspension
components will occur.
1.
2.
3.
The proper spring tension may be obtained by having the
rider(s) sit on the machine, in the normal sitting position and
measure the distance between the floor and the bottom of
the running board at the rear of the machine (either side).
This measurement should be 41J2" to 6".
To adjust, loosen the nuts on the eye bolts and adjust accordingly, making certain that each spring is tightened or
loosened the same amount.
Repeat Step l, and tighten the nuts on the eye bolts securely
when the 4V2" to 6" measurement is attained.
NOTE: When 300 lbs. (combined passenger weight) is normally carried on machine, a "heavy duty" spring kit should
be installed on machine. This kit is available at your Scorpion
dealer. It is an accessory item.
30
31
TACHOMETER/SPEEDOMETER BULB REPLACEMENT
TROUBLE SHOOTING
I.
TAILLIGHT /BRAKE LIGHT REPLACEMENT
ENGINE WILL NOT START OR STARTS WITH DIFFICULTY
POSSIBLE CAUSE
REMEDY
a. No fuel in tank . . . . . . . . . Fill tank with clean, fresh
fuel/oil mixture.
b. Obstructed fuel line
or filter . . . . . . . . . . . . . . . Clean fuel line and/or
replace filter.
c. Fuel tank cap vent
hole obstructed ......... Clear small hole in gas
gauge crystal.
d. Water in fuel. . . . . . . . . . . Drain tank, dean tank,
carburetor and fuel lines.
Dry spark plug electrode.
Fill tank with clean,
fresh fuel/oil mixture.
e. Engine flooded . . . . . . . . . See Starting Procedures.
f. Improper carburetor
adjustment . . . . . . . . . . . . Adjust carburetor.
g. Loose or defective
wiring . . . . . . . . . . . . . . . . See your Scorpion Dealer.
h. Fouled or faulty
spark plug. . . . . . . . . . . . . Replace spark plug.
i. Poor compression. . . . . . . See your Scorpion Dealer.
2. ENGINE KNOCKS
A number of possible problems may exhibit this symptom; car~
buretor adjustment too lean, carbon in combustion chamber,
loose or worn connecting rod or bearing, pistons, or incorrect
magneto timing. In any event, if this condition occurs, SEE YOUR
SCORPION DEALER.
3.
ENGINE MISSES UNDER LOAD
POSSIBLE CAUSE
REMEDY
a. Spark plug fouled or
improperly gapped ..... . Clean and regap or
replace spark plug.
b. Spark plug porcelain
cracked. . . . . . . . . . . . . . . Replace spark plug.
c. Improper carburetor
adjustment . . . . . . . . . . . . Adjust carburetor.
4.
ENGINE LACKS POWER
POSSIBLE CAUSE
a.
b.
c.
REMEDY
Improperly timed .. -. .... Consult your Scorpion
Dealer.
Loss of compression ..... Consult your Scorpion
Dealer.
Carburetor dirty or
damag_ed .............. Consult your Scorpion
Dealer.
32
33
5.
ENGINE OVERHEATS
POSSIBLE CAUSE
a.
b.
9.
REMEDY
Engine improperly timed .. See your Scorpion
Dealer.
Improper gasoline/oil
mixture ............... Use correct gasoline/oil
mixture {see "mixing fuel"
section}.
c.
d.
Cooling fan clogged ..... Clean cooling fins.
Excessive load on engine . Check operation -reduce
load.
e.
f.
6.
Carbon in combustion
chamber .............. See your Scorpion
Dealer.
Fan belt tension ......... See your Scorpion
Dealer.
ENGINE FAILS TO START-WEAK OR NO SPARK
POSSIBLE CAUSE
a. Safety stop switch
depressed. . . . . . . . . . . . .
b. Ignition switch off .......
c. Incorrect spark plug
CARBURETOR RUNS LEAN IN ALL
SPEED RANGES
POSSIBLE CAUSE
a. Inlet filter plugged
or dirty .............. . Replace filter.
b. Carburetor loose on
mounting or gasket
leaking .............. .
e. Faulty ignition coil. . . . . . .
7.
c;:. Air leak in fuel lines .....
a.
Check lines and fitting.
Correct as required.
d. Fuel line plugged ...... .
Clean fuel lines.
e. Air leak in engine
seals or gasket ........ . See your Scorpion Dealer.
10. LIGHT OR LIGHTS FAIL TO OPERATE
POSSIBLE CAUSE
a. Bulb burned out ........ .
REMEDY
REMEDY
Replace with correct
bulb. See bulb
replacement.
Push switch to release
position.
Turn switch to "on".
b. Faulty wiring ......... , .
insulation, bare wire.
Check wiring for short,
loose connections, etc.
Repair as required.
See Your Scorpion Dealer.
REMEDY
b.
Wiring unplugged from
ignition system ......... Install switch plug.
Engine too hot .......... Let engine cool down.
c.
Wrong spark plug ....... lnstall colder plug.
a. All bulbs fail to light.
Check lor shorts, cut
b. One (1) bulb fails to
light. Check far
unplugged or loose con·
nectors, wires that are cut
or loose ground
connections.
ENGINE RUNS AFTER KEY IS SHUT OFF
POSSIBLE CAUSE
Tighten mounting screws
or replace gasket.
gap . . . . . . . . . . . . . . . . . . Regap plugs correctly.
d. Faulty wiring. . . . . . . . . . .
REMEDY
c. Defective switch ....... .
(Note: Taillight is
grounded through bracket
to sled frame.)
Bulbs controlled by that
switch fail to light. See
your Scorpion Dealer.
d. Defective Voltage
Regulator ............ . All bulbs will fail to light,
or they will all be burned
out. See your Scorpion
Dealer.
8.
CARBURETOR FLOODS
POSSIBLE CAUSE
REMEDY
a.
Fuel tank pressure
b.
buildup . . . . . . . . . . . . . . Open tank vent.
Dirty or damaged
carburetor. . . . . . . . . . . .
34
e. Defective lighting
coil . . . . . . . . . . . . . . . . . .
No bulbs will light. See
your Scorpion Dealer.
See your Scorpion Dealer.
35
l OA. ELECTRIC START MODELS
a. low battery charge ..... . Recharge battery to
specific gravity of 1.260
at 80 degree F. electrolyte
temperature. If battery
continues to run down,
see your Scorpion Dealer
to determine why.
(Note: Exclusive night
time operation of snowmobile may require
supplementary battery
charging.)
b. Battery not being
charged .............. .
SUMMER STORAGE
Your machine must have the following performed or damage can
Occur to certain components making your snowmobile nonfunctional for the winter season.
l. Thoroughly clean the snowmobile. Use soap and water and
flush -dirt, grass, rocks and any other debris from the track
area with high pressure nozzle and hose. Carefully clean under the hood and engine cover.
2. Inspect all parts for wear or damage. Tighten bolts, nuts and
screws that are found loose.
See your Scorpion Dealer
for system -check of circuit
breaker, lighting coils,
battery regulator and
wiring.
3. Disconnect fuel lines from the carburetor. Start engine, run
the engine out of fuel at idle speed. Remove the fuel from the
gas tank and drain'fuelline:s. Reconnect fuel lines.
4. Remove spark plvgs. Put one teaspoon of Scorpion
Snowmobile oil in each cylinder. Pull the starter handle,
slowly, several times to make sure that the cylinder walls
and pistons are lubricated. Reinstall old-plugs.
5. Pull the enriching valve control to out position. Cover the carburetor air intake with a plastic bag.
6. Clean and polish the hood and tunnel with automobile spray
type wax. Touch up scratches on the metal surfaces with a
good enamel ~pray.
7~ Remove the drive belt.
I
8. Elevate the back of the snowmobile so that the track is off
the ground. Loosen the track adjusting screws to take tension off the track.
9. On electric start models, remove the battery. Fill, clean and
charge the battery and store in a cool, dry place. (Do not
place battery on bare ground or cement floor.)
I'
!;
10. Spray chrome parts, aluminum parts, and rubber parts with
silicone spray.
NOTE: Clutch assemblies and drive belt should not be treated
with silicone spray.
11. Place a cover over your snowmobile and store inside, if
possible.
36
37
- - - - - - - - - - - - - - - - - . - - -........===~=~~-~~===--~----GETTING READY FOR WINTER
Your snowmobile has been in storage all summer. Therefore,
there are vital areas that need to be checked and made ready for
winter operation. The following should be done, either by yourself or your Scorpion Dealer.
1.
Check the machine for loose bolts, nuts and screws you may
have missed when placing the machine in summer storage.
2.
Install the drive belt. (Replace belt if abnormally worn.)
3.
Install new spark plugs properly gapped.
4.
Fill tank with fresh, properly mixed fuel.
5.
Remove plastic bag from carburetor.
6.
Check battery for proper electrolyte level, charge it fully and
install it in the snowmobile. (Electric start only.)
7.
Check throttle and brake controls for correct setting and
freedom of movement.
8.
Start engine. Check operation of all lights, and safety stop
switch.
9.
Adjust track to proper tension.
10. Take a trial run to verify that the machine is properly
operating.
NOTE: Refer to the "Maintenance Interval Chart". The chart
has all the items listed that must be checked for safe
operation of your machine.
38
INDEX
BELT REPLACEMENT .................................... 25
BRAKE ADJUSTMENT ................................... 20
BRAKE LEVER ...... ~ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
BRAKELIGHT SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
BREAK-IN PROCEDURE ................................. 11
CARBURETOR ADJUSTMENT ............................. 23
CARBURETOR TROUBLE SHOOTING ....................... 35
CHAINCASE LUBRICATION .............................. 19
COLD START ......................................... 12
CONTROLS & INSTRUMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
ELECTRICAL TROUBLE SHOOTING ......................... 33
EMERGENCY START .................................... 13
ENGINE TROUBLE SHOOTING ............................ 33
ENRICHING VALVE CONTROL ............................ 7
FLOODED START ...................................... 12
HEADLIGHT ADJUSTMENT .............................. 18
HEADLIGHT BULB REPLACEMENT ......................... 31
HIGH SPEED SETTING .................................. 23
HI-LO BEAM SWITCH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
HOT START .......................................... 12
IDLE SETTING ......................................... 23
IGNITION SWITCH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
MAINTENANCE TIPS ................................... 14
MIXING FUEL. ........................................ 10
PREOPERATING TIPS ................................... 4
PRIMER ............................................. 7
RECOIL STARTER ~ ..................................... 7
SAFE DRIVING TIPS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
SAFETY STOP SWITCH. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
SERVICE INTERVAL CHART .............................. 15
SKI ALIGNMENT ...................................... 21
SPARK PLUG REPLACEMENT ............................. 16
SPEEDOMETER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
STARTING PROCEDURE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
SUMMER STORAGE .................................... 37
SUSPENSION ADJUSTMENT .............................. 30
TACHOMETER ........................................ 7
TAILLIGHT BULB REPLACEMENT .......................... 32
THROTTLE CABLE ADJUSTMENT .......................... 24
THROTTLE LEVER .................................... 7-24
TOOL & SPARE PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
TOOL POUCH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
TRACK ADJUSTMENT .................................. 28
TRACK JACKS ........................................ 28
TROUBLE SHOOTING ................................... 33
WINTER PREPARATION ................................. 38
39
SCORPION, INC.
CERTIFICATE OF WARRANTY
SCORPION, INC. (Scorp ion) hereby w arrants each pro duct sold to the retail pur chaser to be free from defects in mat erial a nd workmanship under n ormal use,
maintenance and service during the period of time and upon the conditions
hereinafter set f o rth.
1975 SUPER STINGER: All models will be warranted for a period of one (1 ) year
from the dote of the o rigina l retail purchase.
BRUT, W HIP, LIL W HIP, All CARRY-OVERS: Any machine sold prior to February 15,
1975 wi l l be w ol'r anted f or ninety (90) days fro m the date of the o ri_g inal retail
purchase or until February 15, 1975, w hichever is later. Any machine which hos
an original retail purchase dote after February 15, 1975 w ill be warranted until
January 15, 197 6.
The polyurethane !rock wi II be warranted for a period of one ( 1) year from the
date of the original retail purchase.
This warranty includes all parts except l ight bulbs, windshields, drive belts, spark
plugs, brake pads, breaker points. condensers, wear rod s, throttle and broke '
cables.
THIS WARRANTY IS INVALID IF THE SLED HAS BEEN OPERATED ON INSUFFICIENT
SNOW COVER OR HAS BEEN USED FOR RACING PURPOSES.
The snowmobi le must be sold and repair s made by o n authorized SCORPION
de aler using genuine SCORPION parts. The machine mu st not have been altered,
misused, neglected, improperly maintai ned, or used by any previous ow ner; nor
os o commercial o nd/ or rental unit. SCORPION'S obligation under the t erms of
this w a rranty is to repair or replace any part w hich it determi nes t o b e de fective
and to warranty labor per its current flat rate schedule.
In the event of a d ispute as to w hether or not a failure in the product is due to
defect ive materials or workmanship , SCORPION shall have the right, as a condition precedent to its liabil ity, to require the part or parts to be returned to its
fact ory, transportation charges prepaid, f or inspection and verification of the
cause of such failure.
SCORPION reserves the right to incorporate changes or improvements in the
design of our products at any t i me without incurring any obligations to t hose
manufactured previously.
SCORPION makes no warranty with respect to damages or d efects in any product
caused by misuse, misapplication, neglect or accident, nor does SCORPION make
any w arranty as to any product which has been repaired o r a ltered in any w ay
which, in the sole judgment of SCORPION , affects the performance, stability or
purpose f o r which th e product was manufactured. Such a lteration s i nclude use of
unautho rized accessories and / or attachments not manufactured by SCORP ION.
~I
Th e foregoing w arranty shall be the sole a nd exclusive remedy o f th e purchaser
whether in contract, t ort or otherwise, and SCORPION shall not b e liable l or injuries to persons or property.
In no event shall SCORPION be liable for incidental or con sequential damages or
comme rcial losses nor f or any othe r loss o r damage except a s above set forth.
Neither the distributor, the sel ling dealer nor any other p erson has authorization
to mak e o ny affirmation o r o ther rep resentation in regards to th is warranty
policy. A ny dev iation shall not be enforceable against SCORPION, INC.
This warranty is applicable only if the selling dealer returns the Factory Copy of
the warranty cord to SCORPION lor proper registration of the machine.
DISCLAIMER
THIS WARRANTY IS EXPRESSLY IN LIEU OF ANY OTHER WARRANTY, EXPRESS
OR IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, OR ANY OTHER OBLIGATION OR LIABILITY
O N THE PART OF SCORPION, INC.
40
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