Now
Service Miles
50
250
500
1000
1500
3000
4500
6000
7500
9000
10500
12000
And Each
1500 Miles
There After
Date
Actual Miles
Name of Person Performing Service Oil & Filter Installed
JIMS
555 Dawson Drive
Camarillo CA, 93012
805-482-6913 • www.jimsusa.com
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No.1208-1355
Owners Manual for all JIMS engines 120, 131, & 135
JIMS ENGINE INFO SHEET
SECTION 1
Customer # ____________________ Business Name ______________________________
First Name __________________________________________________________________
Last Name __________________________________________________________________
Phone # ____________________ Ext __________
Address _____________________________________________________________________
Zip _________________
Warranty Card_______________________________________________________________
SECTION 2
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6-13
4.
CONTACT INFORMATION
City ________________________________ State ____________
Owners Manual for all JIMS engines 120, 131, & 135
MOTORCYCLE INFORMATION
Motorcycle Model / Year ______________________________________________________
Engine Serial Number ____________________________________________________
Cylinder Head replace if more than:
• Valve guide, press fit in head .002
• Valve seat, press fit in head .002
• Head warpage .006
5. Cylinder, replace if more than:
• Taper .002
• Out of round .002
• Warpage at gasket surfaces .006
6. Piston replace if more than:
• Fit in cylinder .006
• Piston pin fit (wrist pin) .0012
• Compression rings .030
• Oil control rings .070
• Ring side clearance compression rings .004
• Ring side clearance oil control rings .008
7. Connecting rod, replace if more than:
• Piston pin fit (wrist pin) .0012
• Side play between flywheels (female rod end play) .024
• Fit on crank pin (up and down play) .002
8. Flywheel runout not to exceed:
• .005 in truing stand
• End play ( F/W in left bearing).006
• Inspect shaft bearing journals for scoring, galling or wear, not to exceed
• .0005 runout in a truing stand.
9. Oil Pressure at 2000 rpm with an oil temperature of 230〫F. Should be 25 to 35 PSI,
using the correct oil viscosity for the ambient temperature engine will be operating in.
10. Counter balance components: replace if more than:
• Balance chain guides (front & rear) .060 to .070
• Balance chain guides (lower) .060 to .070
• Inspect other balancer components using H-D service manual
Clutch _________________________________ Tire Size ____________________________
Actual Mileage __________________________ Mileage on Engine ___________________
Exhaust System _________________________ Air Cleaner __________________________
Ignition Setting _________________________
Rev Limiter set @ ________________________
Electronic Fuel Injection ______________________________________________________
Throttle Body_______________________________________________________________
Modifications (if any): Different Cams __________________
1
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Owners Manual for all JIMS engines 120, 131, & 135
Owners Manual for all JIMS engines 120, 131, & 135
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gine.
Break-In Procedure:
Note: Follow the engine break-in procedures outlined in the Harley-Davidson
owner’s manual per your application.
1. Allow the engine to warm-up before riding.
2. Do not use full throttle.
3. Do not idle the engine for more than two minutes. Note: Even less if the air
temperature is above 80-degrees Fahrenheit.
4. Do not load the engine at low rpm.
Note: All engine loads must be moderate.
5. Vary the rpm frequently.
Note: Do not hold a steady speed.
6. First 50 miles:
• Do not let the engine rpm exceed 2500.
• Do not exceed 50mph.
7. Next 500 miles:
• Do not let the engine rpm exceed 3000.
• Do not exceed 55 mph.
Oil Change Intervals:
Break-in: • At 50 miles
• 500 miles
• 1000 miles
Normal Oil change intervals:
• 1500 to 2000 miles, depending upon usage.
• Change the oil filter every oil change.
Torque Checks:
• Re-check the torque of all accessible engine and chassis fasteners at all oil
changes. (Do not re-torque the head bolts)
Inspection and Service Wear information for Valve Train Components Used in
Performance Twin Cam Engines:
Valve Train Components should be inspected every 5000 miles of service more often
if an engine is used under severe riding conditions, i.e. full throttle race operation,
in city, dusty, low octane usage, trailering and two up. As with all high performance
engines, components are under or subject to more stress in one-way or another,
many times more then a stock engine. The following engine components will need
to be inspected and or replaced every 5000 miles or more often as needed.
1. Rocker Arm / Rocker Arm Shaft replace if more than:
• Shaft fit in bushing .0035
• End play, side clearance .025
• Shaft fit in support plate .003
2. Cam Support Plate, replace parts if more than:
• Cam chain tensioned shoe wear .090 or 1/2 thickness of shoe
• Crankcase bushing press fit in cam support plate .0008
• Crankshaft bushing maximum I.D. .8545
3. Hydraulic Lifter Replace if more than:
• Fit in crankcase .003
• Roller end clearance .015
• Roller fit on axle .0015 or any rough area or tight spot
13
Spark Plugs ____________________ Gaps ________________
Ignition System _________________Oil Pumps _____________________
Heads ____________________________
Modified Heads __________________________________
SECTION 3
ENGINE AND TESTING INFORMATION
Date of Installation ____________________
( With Cover? • Yes • No )
Motorcycle Serial Number ________________________________
Transmission Ratio (Pulleys)_____________________
Gear Ratio ____________________________
Carb Jetting:
Main ___________ Slow __________Needle ______________________
Bleed down Test Results Front: ___________ Rear: ____________
Systems: _____________
Compression Test Results Front: ____________________Rear: ______________________
Dyno Test Results HP _____________________ Torque ____________________________
Dyno Charts __________________________________________________________________
MOTOR WARRANTY / RETURNS
JIMS shall not be liable for any consequential or incidental damages resulting from a failure
of any JIMS motor, the breach of any warranties, the failure to deliver, delay in delivery, delivery in non-conforming condition, or any other breach of contract between JIMS and a customer. Each part returned will be inspected for damage due to improper packaging/ shipping
or damage that occurred prior to JIMS receiving the part. After inspection of the motor is completed and there is any incidental damage the customer will be notified immediately.
MOTOR WARRANTY PROCEDURE
See terms and conditions in the JIMS catalog for authorization to return parts.
The following requirements must be met before JIMS will authorize the warranty return of a motor/ transmission/ flywheel assembly:
1.
2.
Must provide proof of the date of sale from the dealer (copy of invoice, invoice # or Warranty card).
Must provide detailed description of problem with motor.
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Owners Manual for all JIMS engines 120, 131, & 135
3. Must provide the motor serial number (see Section 3).
4. Must call and get a Returned Goods Authorization number from JIMS.
All motor returns carry a $500.00 Inspection Fee. If the Engine is determined
defective due to a defect in manufacturing, material, or workmanship, the fee
will be waived. If the returned part is found not to be defective, the fee is imposed as well as the cost of parts and additional labor for repairing the engine
assembly.
I agree with the above warranty procedures and authorize JIMS to charge
a $500.00 Inspection Fee on engine, as well as charge for additional parts
and labor if the engine is not found to be defective.
Signature __________________________________________
Date ____/____/_______
(Authorized signature required to process return.)
SYMPTOMS:
_________________________________________________________
_________________________________________________________
_______________________________________________________________
In addition to the above information, we require the following parts and documents. (Please copy pages 1,2, and 3 then return these completed forms before returning any parts):
_______ Original Invoice of Purchase
Office Use Only
_____________________________________________________________________
Hold Product:
___________
_________
_________
_________
Yes
Date
No
Date
Owners Manual For All JIMS® Engines 120, 131, & 135
Thank you for purchasing one of JIMS engines, which has been designed and
manufactured to give years of safe Racing fun.
This owners manual gives you an in-depth look at the maintenance required
to keep your JIMS engine running strong. Any and all repair information that
is needed can be found in a service manual for the year and model of JIMS
engine you have installed in your motorcycle.
The use of an H-D parts book will be helpful for viewing the parts and part
numbers required for any repair. Please note that all JIMS engines use a Timken
bearing for the retention of the flywheel assembly in the left case. With that
being said, you will also need a service/parts book and manual for model year
2002.
JIMS will be making periodic improvements to these engines. With these im-
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Owners Manual for all JIMS engines 120, 131, & 135
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would not fill and pits would be empty. There would be no friendly arguments
about 'which cam' or 'what exhaust' works best. Drag racing is one of the most
popular motor sports in America. The fans are often racers themselves, have
been racers, want to be racers or know a lot about the nuts and bolts of drag
racing. We at JIMS have spent years developing the JIMS 120, 131, & 135 Race
engine for drag racers and those who want to become drag racers. The 120,
131, & 135 engine is a strong, ground pounding and reliable base for your exploration into the complex and fascinating sport of drag racing. We hope you
enjoy your new 120, 131, & 135 as much as we are pleased to bring it to you.
Pre Start procedures:
Do not connect the oil return line from the engine to the oil tank. Fit a hose
from the engine’s oil return fitting and run the hose into a large catch-pan.
Note: Remove the spark plugs from the engine. Attach the plug wires to the spark
plugs and lay them on the cylinder heads to prevent damage to the coils.
Be sure the oil tank is properly filled with the correct oil. Use the electric starter
to turn the engine until the oil pressure light goes out or until the pressure
gauge reads 10 -15 psi. Re-install the spark plugs, torque to 12 to 18 ft lbs., attach plug wires. Depress both compression release plungers. You can hold the
rear compression release plunger as the engine is trying to start. After engine
has started, release compression release plunger. Allow the return oil to run
into the catch pan. Run engine between 900 and 1500 rpm until the tops of
the cylinders have reached 200 degrees Fahrenheit (too hot to touch). This
normally takes between one and two minutes. Note: Do not allow the oil level
in the tank to get too low while the engine is running. Stop the engine and let
it cool to room temperature. Inspect the installation for any oil or gasoline leaks.
Top – off the oil tank. Repeat the warm-up and cool-down procedure three additional times. Note: Watch and maintain the oil level in the tank. You may reconnect the oil return line to the oil tank after at least two quarts of oil have
been pumped into the catch pan. Discard the oil in the pan.
EVO-TWIN CAM: Checking and Adding Oil
Caution: If JIMS EVO Twin Cam engine will be installed in a Softail or
any model motorcycle that will have its oil tank higher than the engine,
you will need to follow the instructions listed below. Install the recommended amount of oil and type per your owners manual in oil tank.
Ride the motorcycle until the engine is up to operating temperature. Idle motorcycle on kickstand for 2 minutes. Turn the motorcycle off and with the bike
still on kickstand, remove and check oil level on the dipstick. Add oil if necessary until oil registers on the upper groove of dipstick (Full, Hot Line.)
Performance Twin Cam Engines:
Valve Train Components should be inspected every 5000 miles of service. More
often if an engine is used under severe racing conditions, i.e. full throttle race
operation. As with all high performance engines, components are under or
subject to more stress in one-way or another, many times more than a stock en-
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Owners Manual for all JIMS engines 120, 131, & 135
Combustion Chamber Pressure:
Power output and combustion chamber pressure are directly related. The
higher the pressure, the more efficient and more powerful the engine becomes,
within limits. That is, until the onset of detonation. A racing engine, one that
is carefully and constantly looked after by an expert, can run with very high
compression pressures. In the case of the Twin Cam chamber design, these
pressures can exceed 210 psi. An engine that operates under a variety of conditions must have its compression pressure compromised so that it is not damaged under the worst of those conditions. For this reason, your JIMS 120, 131,
& 135 Race engine does not develop the very highest possible compression
pressure. Compression pressure is found by performing a common compression test as outlined in Harley's shop manuals. In this test, the mechanic removes both spark plugs and fits a compression tester to one of the plug holes.
He then opens the throttle fully, lifts the CV slide, and turns the engine through
five to seven compression cycles or until the pressure reading on the tester
stops rising. The measured pressure is the compression pressure for that cylinder. The common method used to raise compression pressure is to remove material from the heads on a milling machine. This decreases combustion chamber
volume, raises the compression ratio and, in turn, raises the cranking pressure.
Detonation:
Detonation must be avoided. A detonation event is literally an explosion. Most
of the time these explosions are so small that they do not immediately damage the engine. However, if they are energetic or frequent enough, things
break. A piston can be destroyed in a few engine revolutions from the effects
of severe detonation. Detonation can be brought on by a variety of conditions
including, incorrect ignition timing, poor quality gasoline, overly lean air/fuel
mixtures, and too much cranking pressure for the particular combustion chamber or engine overheating. If you choose to alter the cranking pressure, ignition timing or carburetor settings of your JIMS 120, 131, & 135 Race Kit engine,
please be aware that any of these alterations, improperly done, can result in engine damage. You should only consider such modifications if competition pressure demands them. And, make them only if you have the experience or expert
assistance to deal with the possibility of detonation. Performance Tuning: As
you can see, performance tuning is complex. One change often creates the
need for other compensating or complimentary alterations. If raising the compression pressure makes the chamber more turbulent, a likely thing, it may be
necessary to back-off ignition timing to compensate for the increased flamefront speed across the chamber. If moist air rolls across the track late in the afternoon, a leaner main jet may be needed to compensate for the reduced
oxygen in the more moist air. If that air is also cooler and more dense, no
change may be needed at all. The possibilities are almost endless. However,
exploring those possibilities can be great fun. If drag racing and performance
tuning in general were "Cut-and-Dried", they would be boring. The stands
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Owners Manual for all JIMS engines 120, 131, & 135
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provements, it’s difficult to list all replacements. So, if you’re unable to receive
the service or parts you need to maintain your JIMS race engine, please call
JIMS Parts department at 805-482-6913 or E-mail at www.jimsusa.com
If you do find it necessary to contact JIMS, please have the following information written down and handy; failure to do so will delay service.
Before starting or riding your new JIMS engine, please read through your H-D
owner’s manual as it is your (the riders) responsibility to know how the engine
and motorcycle function correctly. These engines are first and foremost a TwinCam, designed & manufactured with its size and power in mind. If for any reason this engine starts to make LOUD internal noises, safely stop the engine and
fill out the information sheet and submit to JIMS.
Caution:
These engines make almost double the HP & Torque as your old stock engine.
120” Engine both Alpha & Beta
Cylinder................................................................................................2
Type of engine.................4-cycle, 45 Degree V-twin, Oil & Air Cooled
Standard Compression Ratio ................................................10:00 to 1
Bore .............................................................................................4.125”
Stroke ..........................................................................................4.500”
Displacement .................................................................................120”
Recommended Gas ...............................................................91 Octane
131” Engine both Alpha & Beta
Cylinder ...............................................................................................2
Type of engine..................4-cycle, 45 Degree V-twin, Oil & Air Cooled
Standard Compression Ratio ................................................10:50 to 1
Bore.............................................................................................4.313”
Stroke..........................................................................................4.500”
Displacement .................................................................................131”
Recommended Gas ...............................................................91 Octane
135” Engine Alpha
Cylinder ...............................................................................................2
Type of engine..................4-cycle, 45 Degree V-twin, Oil & Air Cooled
Standard Compression Ratio ................................................10:67 to 1
Bore.............................................................................................4.313”
Stroke..........................................................................................4.625”
Displacement .................................................................................135”
Recommended Gas ...............................................................91 Octane
Camshaft Specifications
Lift: .658”/.658”
Duration: 262*/266*
Intake: 24* BTDC / 58* ABDC
Exhaust: 69* BBDC / 17* ATDC
TDC Lift: .208”/.178”
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Owners Manual for all JIMS engines 120, 131, & 135
Before Installing Engine In Chassis preparation
If a shop has performed the install and start up of your new engine then you
will not need to perform the following steps. But you will need to know if they
have indeed done the following steps. If you will be doing the installation of
JIMS engine, then you will need to do the steps listed below.
Sprocket Shaft Spacer Information
If your motor assembly came with a sprocket spacer installed already you
should be ready to install engine in chassis from the info you gave the Sales
Dept. If you have an extra spacer shipped with the engine then check application list below for correct usage per year/model.
Sprocket Shaft Spacer
• Inspect the engine sprocket shaft, seal and bearing cavities for any packaging debris before continuing.
• Locate spacer specific to your application:
• For 1999 to 2005 Dyna "A" use H-D 24038-99A, JIMS No.1286-1319, spacer,
.888” long.
• For 2006 to present Dyna "A" use H-D 24008-99A, JIMS No.1286-1320,
spacer, 1.0950" long.
• For 1999 to present FL "A" use H-D 24008-99A, JIMS No.1286-1320, spacer,
1.0950" long.
• For 2000 only Softail "B" use H-D 24038-99A, JIMS No.1286-1319, spacer,
.888" long.
• For 2001 to - 2006 Softail "B" use H-D 24039-01A, JIMS No.1486-1834,
spacer, .988" long.
• For 2007 to - present Softail "B" use H-D 24008-99A, JIMS No.1286-1320,
spacer, 1.0950" long.
• Inspect spacer for nicks and dents.
• Lightly coat outside diameter of sprocket shaft spacer and the inside of the
sprocket shaft seal with clean 20w-50 H-D® motor oil.
• Slide sprocket shaft spacer onto sprocket shaft, until it is seated on the
sprocket shaft bearing.
Recommended Oil Cooler:
These engines need to be fitted with an effective oil cooler. JIMS recommends
you use the current H-D Accessories Book Oil Coolers. Order your cooler kit for
the correct year and model of the motorcycle. Besides the 1st priority of an oil
cooler you can also add a JIMS “Forceflow Cylinder Head Cooler” P/N. 5400
for added cooling. See JIMS catalog or website.
Battery :
It is very important to always use a well maintained battery with performance
engines. Always keep a full charge on the battery or you will cause damage to
the starter drive system. JIMS recommends usage of the H-D OEM maintenance
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Owners Manual for all JIMS engines 120, 131, & 135
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dramatic. As a rule-of-thumb, you can expect a pressure loss of 3% for each
1,000 feet of altitude gain, meaning that at 10,000 feet elevation an engine will
lose almost 30% of its power. This loss in power will be slightly greater due to
the air/fuel mixture becoming richer.
Carburetor settings can become too rich for smooth operation and/or maximum power production. If you are going to operate your JIMS engine above
3,000 foot elevation, you may find it necessary to alter the jetting. Denver for
example is one mile above sea level; so you may need to install the next leaner
needle, slow jet, and possibly a couple sizes leaner on the main jet. (A highly
experienced engine tuner should make such changes.) Atmospheric conditions
are much more important when racing, because small differences can determine whether you go on to the next round or go onto the trailer. Races are
often won or lost on a tuner's ability to dial in the jetting as the atmospheric
conditions change during the day. If you do not understand jetting, do not
hesitate to ask questions. The majority of race tuners are more than willing to
share much of what they know, but do not expect to get all the details - it is
racing after all! Drag Racers are a congenial group and they want you to be
there, racing with them, and enjoying it, but it is in your best interest to gather
multiple tuners’ suggestions to help ensure the jetting set up you choose is fitting for the conditions.
More Power- Air Flow Volume:
Ultimately, the amounts of power your JIMS 120, 131, & 135 Race engine can
produce is determined by two factors. How much air it can process in a given
time and how efficiently it uses that air to supply useful power to its crankshaft.
The JIMS 120 Race engine delivers about 121 horsepower while the 131 puts
out about 130 horsepower. The 135 delivers about 136 horsepower. It is very
possible to increase that output by 20% or more, and it’s also possible to reduce output by a similar percentage. Each and every part of this engine is perfectly balanced, designed and developed or selected to work together for
maximum airflow and power output. Keep in mind it is easier to lose power
than to gain power. For instance, if you upgrade to a larger air cleaner or carburetor to flow more air, the result may not meet your expectations. That’s because a larger carburetor does little to improve power if the total airflow is
limited in some other part of the engine.
Substantial power gains require substantial modifications. Increased airflow
through the cylinder heads of your JIMS 120, 131, & 135 Race engine requires
the manifold and both intake and exhaust ports be carefully and skillfully modified. Cylinder head porting continues to be an art form and should only be performed by a practiced porting expert. While the Screamin' Eagle air cleaner
element is one of the highest flowing units available, the stock airflow is substantially increased with larger filters that allow more air volume than the supplied filter. However, they may interfere with riding comfort depending on
make, model and personal preferences.
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Owners Manual for all JIMS engines 120, 131, & 135
Application Information for EFI engines or carbureted models.
Use JIMS Air Cleaner Billet Backing Plate Kits with built in breather system. It is
compatible with stock H-D outer air cover. The other option is to see your local
H-D dealer for a selection of Screamin’ Eagle air cleaner kits. If you are using one
of these kits be sure to follow the instructions provided by the manufacturer.
Recommended Carburetor and Settings:
JIMS recommends using the Screamin' Eagle Super Bore 51mm CV carburetor
kit No. 27928-07A. It requires ordering separately the Screamin' Eagle manifold
kit No. 29414-07. If carburetor tuning is required order Screamin' Eagle 51mm
tuner kit No. 27432-02. Order all all separately from a H-D dealer.
Note: For carburetor settings refer to manufactures instructions. Additional related instructions will come from the ignition programing system you choose.
The following info relates to usage of the Screamin' Eagle Super Bore 51mm
CV carburetor kit No. 27928-07A using Screamin Eagle Ignition No. 3212404.
1. The standard (furnished) settings are normally correct when used with 2into-1exhaust systems.
Note: Alternate exhaust systems may require different settings.
2. The standard (furnished) settings are normally correct for a "standard day"
such as is common near sea level in the summer.
70 degrees Fahrenheit.
29.9 Hg pressure
50% humidity
3. The Screamin' Eagle 51mm carburetor's standard settings are:
Main Jet: 230
Slow Jet: 48
Jet Needle: NDKS (JET settings may need to be changed for peak H.P.)
Recommended Exhaust Systems:
JIMS has tested exhaust systems on the Dyno for the best horse power numbers. As a result of all these tests, we have found the Thunderheader Exhaust
System and the Supertrapp 2 into 1 exhaust system (using 17 discs) gave us the
best HP numbers.
Recommended Oil, Filters and Spark Plugs:
For pre-start oil, you can use any good quality oil that has been designed for
air cooled roller bearing engines. After heat sinking engine, use an oil that is
mineral-based, like H-D 360. If your riding ambient temperature is above 40 degrees F, you can use SAE 20-50 oil for the first 2000 miles. Use 32329-97 Spark
Plug, 6R12PP Double Platinum, and 12mm gap at .038 to .043.
Tuning Factors- The Air: Changes in air pressure, temperature and humidity all
have effects on the air/fuel mixtures, power output, and engine temperature.
At a constant altitude, such changes are small and generally not as important
in day-to-day operation. Changes in altitude cause the effect to become more
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Owners Manual for all JIMS engines 120, 131, & 135
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free battery for the correct model application.
Battery Cables:
JIMS recommends Super Flex performance battery cables because of the material quality of the cable and eyelets and flexibility. See JIMS catalog for a full
model selection.
Starters and RIng and Pinion gear sets:
If your starter can't handle that big inch engine or is just plain worn out see JIMS
New 2013 catalog for our selection of Performance High Torque starters. We
also offer High Torque Starter Ring and Pinion Gear Sets to help take the stress
of your starter.
Washing out complete oiling system:
Before you install your new JIMS Race engine in its chassis, thoroughly remove
and wash out the complete oiling system. This includes removing all parts that
oil has passed through; oil tank, oil cooler and oil lines. Make sure the entire oiling system is clean. If you are fitting your new JIMS Race engine into a chassis
that has been used, be sure to completely clean the oil tank together with all
lines and fittings leading to and away from the engine. If the old engine has
more than 20,000 miles of use, or, if it has suffered any unusual wear, dismantle
the oil pan and hoses and thoroughly clean them.
Be very careful you do not tear small slivers of rubber off the edges of the oil
lines as you fit them to the engine's oil fittings.
Some Pre Start Information:
Do not connect the oil return line from the engine to the oil tank. Fit a hose
from the engine's oil return fitting and run the hose into a large catch-pan.
TWIN CAM EVO Mounted Engine Installation:
Remove any paint from the motor mount pads on frame. If installing in an
FXST (Softail), bolt down the rear engine mounts first. The rear engine case
mounting holes have been optimized so the installation of the rear bolts can
be performed with assembled engine. Install top motor mount per Harley–
Davidson’s service manual for the year and model you have. After Torquing
the rear engine bolts, check the clearance (gap) between the front engine
mount and the frame. Shim front engine mount to within .010 of an inch with
shim stock.
TWIN CAM EVO Mounted:
Recommended Rear Engine Mounting Hardware:
H-D Part No. 3528 rear motor mount bolt 3/8"-16 x 3-1/4" used on 1991-98
FL, FXR, FXD, and 99 FXR.
H-D Part No. 3512 rear motor mount bolt 3/8"-24 x 3-1/4" used on 1991-99
FXST.
H-D Part No. 6019 washer 3/8" x 29/32” x 1/16” 1991-96 FXST and 1991-98
FL, FXR, FXD, & 99 FXR. For 2006 to present Dyna's or 2007 to present FL's,
remove the three red shipping plugs before attaching the transmission. If
you neglect to remove these, you will not have oil pressure and will damage
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Owners Manual for all JIMS engines 120, 131, & 135
the engine when you start up.
Front cylinder head mount 2008 to present Touring models
JIMS engines come with the mounting hole provisions for the front head mount
to be installed without any modifications. You can use your original mount and
hardware or chrome, polished or black anodized JIMS Billet front head mount
and chrome Heim joint link. This is a stronger and better looking mount system. Order separately. See JIMS No.1437 and 1444 in catalog or on the website. Follow either H-D service manual or JIMS instruction sheet for installing the
front head mount and torque specifications.
All Models Installing Primaries and Clutch:
Follow installation instructions for inner and outer primary, clutch assembly,
sprockets, primary chain, adjustment and alignment, per H-D service manual
for the year and model you will be working with.
Engine Compensator recommendation:
We recommend a H-D No.40274-08A or equivalent. This kit comes with heavier springs and increased travel to meet the demands of race engines. This kit
will support up to 7 times the energy absorption capacity of the original equipment compensator In return, this will help protect the engine and driveline
components during extreme drag race launches. The 2012 & 2013 models
come stock with this.
Clutch Recommendation:
The high torque output of the JIMS Race engines do require a clutch with increased torque capacity. The Screamin’ Eagle® No. 37976-08A clutch or JIMS
High Performance Billet Clutch No. 8382 are two examples you can use.
Battery :
It is very important to always use a well maintained battery with performance
engines. Always keep a full charge on the battery or you will cause damage to
the starter drive system. JIMS recommends usage of the H-D OEM maintenance
free battery for the correct model application.
Battery Cables:
JIMS recommends Super Flex performance battery cables because of the material quality of the cable and eyelets and flexibility. See JIMS catalog for a full
model selection.
Starters and RIng and Pinion gear sets:
If your starter can't handle that big inch engine or is just plain worn out see JIMS
New 2013 catalog for our selection of Performance High Torque starters. We
also offer High Torque Starter Ring and Pinion Gear Sets to help take the stress
of your starter.
Ignition for Carbureted:
Follow the ignition manufacturers instructions when installing per application.
JIMS recommends for carbureted models the JIMS Race Ignition that can be ordered separately from JIMS’ Sales Department.
Use JIMS No. 2344 JIMS Race Ignition on 1999 - 2003 Alpha carbureted mod-
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els.
Use on 2000 - 2003 Beta carbureted models.
Use H-D 32124-04 ignition race turner or equivalent on 2004 - 2006 Alpha or
Beta carbureted models.
Tuning for EFI:
Application information for fuel injected engines
JIMS recommended ignition for fuel injection engines is the Screamin' Eagle
Pro Super Tuner and the Screamin' Eagle Pro Tuner Software with "Smart Tune".
You may also need a Pro Tuner cable kit and a Pro Tuner training DVD. These
are for race application only.
Use H-D 32109-08C Screamin' Eagle Pro Super Tuner for 02 and later EFI Dyna,
Softail, and 02 - later EFI Touring, and Trikes.
Use H-D 32111-13 Screamin' Eagle Pro Tuner software with "Smart Tune" for
02 and later EFI Dyna, Softail, and 02 - later EFI Touring, and Trikes.
Use H-D 32184-08A Screamin' Eagle Pro Tuner cable kit. Use 41000018 for
2011 to present softails and 2012 to present Dynas.
Use H-D 32101-10 Screamin' Eagle Pro Tuner training DVD.
Intake Manifold Installation:
Center the intake manifold evenly between the two intake flange mounts per
your service manual for the year and model.
Throttle Bodies and Manifolds:
JIMS recommended throttle bodies and manifolds for the fuel injected engines
are as follows: JIMS throttle bodies are for all 2006 to present throttle cable
style motorcycles. JIMS throttle bodies cannot be used on electronic throttle by
wire models used on some 2008 to present motorcycles. Follow the throttle
body manufacturers instruction when installing per application.
Use No. 5221 JIMS 62mm Elliptical throttle body with electronic components
Use No. 5215 JIMS 58mm Elliptical throttle body with electronic components
Use No. 5222 JIMS 62mm Elliptical throttle body without electronic components
Use No. 5216 JIMS 58mm Elliptical throttle body without electronic components
Use No. 705 JIMS Manifold with electronic components
Use No. 704 JIMS Manifold without electronic components
Use No. 27713-08 Screamin' Eagle Pro High Flow 58mm EFI throttle
body/manifold for throttle by wire models only. Use on 2008 to present Touring Models. Use No. 27639-07A Screamin' Eagle Pro High Flow 58mm EFI
throttle body for cable operated throttle. Use on 2006 to present Dyna or Softail EFI models and 2006 – 2007 Touring EFI models. Not for use on cruise control models. Use No. 29667-07 Screamin' Eagle Pro Hi-Flow intake Manifold
for No.27639-07A 58mm throttle body. Note: See H-D dealer for details on
mounting information. Use No. 27623-05A Screamin' Eagle Pro 50mm throttle body/manifold for cable operated throttle.
Performance Air Cleaner Kits:
These are designed for Race applications only
8
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