Page de présentation manuel atelier 2013_English_

Page de présentation manuel atelier 2013_English_
SE 250i-R
SE 300i-R
Shop manual
2013
1/54
CONTENTS
Forward ................................................................................................................................................... 2
Motor tools SE25i-F ............................................................................................................................... 3
Technical specification - Motor ............................................................................................................. 4
Technical specification - Frame ............................................................................................................ 5
Standard adjustement – Fork ............................................................................................................... 6
Standard adjustment - Fork Sachs USD Gold Series Ø48MM.......................................................... 6
Standard adjustment - Fork WP USD Gold Series Ø48MM .............................................................. 6
Standard adjustement – Shock absorber ............................................................................................ 7
Standard adjustment - WP Shock absorber ........................................................................................ 7
Operations requiring demounting or not engine ................................................................................. 8
Removing the motor .............................................................................................................................. 9
Removing the motor: ............................................................................................................................ 9
Motor top end ....................................................................................................................................... 11
Disassembling the right side ............................................................................................................... 23
Disassembling the left side ................................................................................................................. 26
Crankcase / Transmission / Central crankcases .............................................................................. 29
Tightening torques ............................................................................................................................... 36
Clean injector body .............................................................................................................................. 38
SHERCO diagnostic tools ................................................................................................................... 41
Software installation ........................................................................................................................... 42
Software presentation (the various interfaces) : ................................................................................... 42
Connecting the diagnostic kit wiring ................................................................................................... 43
Performing diagnostic ......................................................................................................................... 43
Synchronizing the ECU / with the butterfly openning sensor (TPS) .................................................... 45
Electrical installation checking ........................................................................................................... 47
Regulator ............................................................................................................................................ 47
Cable diagram (Injection / light).......................................................................................................... 48
Injection beam .................................................................................................................................... 48
Light beam ......................................................................................................................................... 50
Racing lighting cable diagram : ........................................................................................................... 52
Flasher installation cable diagram : ..................................................................................................... 53
Fan cable diagram : ............................................................................................................................. 54
2/54
Forward
This manual is designed primarily for skilled mechanics working in a properly equipped
workshop. The execution of the operations in this manual requires a strong mechanical
knowledge and specific SHERCO tools designed for the SE 250i-R and SE 300i-R engine.
This workshop manual is a supplement to the SHERCO SE 250i-R and SE 300i-R owner’s
manual.
3/54
Motor tools SE25i-F
Tool
ref
Designation
1819
Dead point
1814
Clutch holder tool
1815
Ignition tool
2067
Swingarm tool
2068
2069
2070
2071
2072
2079
2080
1822
2078
2077
2074
1968
2075
2076
1816
1821
1817
1818
2073
R462
R464
R450
3785
Freewheel tool
Oil seal tool (Gear box exit)
Oil level gauge tool
Bearing tool 6905 (Gear selector
drum)
Bearing tool 6222 (Clutch shaft)
Bearing tool 6203 left ( Balancer)
Oil seal tool 8x18x5
Bearing tool (Water pump shaft)
Oil seal 36x57x7,5 Right
(Crankshaft)
Bearing tool 4905 Right (Balancer)
Bearing tool 6003 (Gear shaft)
Oil seal tool (Water pump)
Piston tool
Bearing tool (Crankshaft)
Ring tool
Engine support tool 250
Pinion tool
Piston support
Resort tool
Flywheel puller
Ring extractor
Gear selector oil seal tool
Spark key
4/54
Technical specification - Motor
Type
Liquid cooled single cylinder 4 strokes engine
Displacement
249.4 CC
303.7 CC
Bore/Stroke
78/52mm
84/54.8mm
Compression ratio
12.6 :1
12.8:1
Fuel
Without lead 95 or 98
Valve timing
4 valves, DOHC driven by tooth type chain
Admission valve diameter
29mm
Exhaust admission valve
25mm
Thickness admission valve
0.15-0.2mm
Thickness exhaust valve
0.2-0.25mm
Crankshat bearing
2 roller bearing
Piston
Aluminium forge
Lubrification
Lubrication under pressure with 2 trochoidal pumps
Motor oil
1 L SAE 10W60
Primary reduction ratio
21 :70
Gear box :
1ère
2ème
3ème
4ème
5 ème
6 ème
6 speed
14 : 33
17 : 30
19 : 28
21 : 26
23 : 24
25 : 22
Final transmission
13 X48
Clutch
Multi-disk in oil bath. Hydraulic command
Ignition system / Batterie
Electric start/12V 6.5Ah
Electronic injection
Magneti Marelli
13 X 48
5/54
Technical specification - Frame
Frame
Semi-perimeter CrMo steel with aluminum subframe
Fork
SACHS USD Gold Series 48mm dia. (standard) & WP USD 48mm dia.
(racing)
Rear suspension
WP Suspension with separate cylinder
Travel Front/rear
300/300mm
Front brake
270mm (standard), 256mm (racing)
Rear brake
220mm
Brake disc
2.7mm front and 3.6mm rear
Front tire
90/90-21”
Rear tire
140/80-18”
Pressure TT
0.9 bar
Fuel tank capacity
8.51 with 1l of reserve
Angle of the steering column
27.3°
Wheel base
1470mm
Weight (with fuel)
102 kg
6/54
Standard adjustement – Fork
Standard adjustment - Fork Sachs USD Gold Series Ø48MM
Compression
Rebound
Spring
Fork oil
Oil capacity
Oil level
Turn clockwise to the stop, then back of 12
clicks
Turn clockwise to the stop, then back off
12 clicks
4.5N/mm
SAE 5
600cm3
130mm
Standard adjustment - Fork WP USD Gold Series Ø48MM
Compression
Rebound
Preload
Spring stiffness
Comfort
Standard
Sport
Comfort
Standard
Sport
Comfort
Standard
Sport
Rider weight: 143 -165 lbs
Rider weight: 165- 187 lbs
Rider weight: 187- 210 lbs
Type of oil
Oil level
20 clicks back
13 clicks back
8 clicks back
18 clicks back
13 clicks back
10 clicks back
2 turns
4 turns
6 turns
4.0N/mm
4.2 N/mm
(original)
4.4N/mm
SAE 4
110mm
7/54
Standard adjustement – Shock absorber
Standard adjustment - WP Shock absorber
Low-speed
compression
High-speed
compression
Rebound
Spring stiffness
Comfort
20 clicks back
Standard
Sport
Comfort
15 clicks back
12 clicks back
2.5 clicks back
Standard
Sport
Comfort
Standard
Sport
2 clicks back
1.5 clicks back
15 clicks back
13 clics en arrière
11 clics en arrière
48N/mm
Rider weight: 143 -165
lbs
Rider weight: 165- 187
lbs
Rider weight: 187- 210
lbs
51N/mm (origine)
54N/mm
8/54
Operations requiring demounting or not engine
Removing engine
Crankshaft
•
Gear box
•
Crankshaft bearing
•
Gear Box bearing
•
Not demounting engine
Piston
•
Cylinder
•
Cylinder head
•
Valve timing
•
Ignition
•
Pinion of ignition system
•
Freewheel
•
Clutch
•
Water pump
•
Oil pump
•
Gear selection
•
9/54
Removing the motor
Removing the motor:
To remove the engine, you must remove
the swing arm axle, the swing arm and the rear
wheel. To keep the bike from falling, remember
to support the chassis with an appropriate jack.
•
Drain (refer to the owners manual)
- the engine oil
- the engine coolant
•
Remove the seat.
•
Disconnect the battery.
•
Remove the fuel tank and its covers.
•
Disconnect all the electrical wiring
connectors from the engine. (Starter, TPS
sensor, water temperature sensor, coil, fuel
injector).
•
Remove the exhaust.
•
Remove the ignition coil.
•
Remove the fuel injector body.
•
Remove the chain.
•
Remove the chain guard.
•
Remove the clutch actuating cylinder.
When the clutch actuating cylinder is
removed the piston is loose. Hold the piston it
in place using a plastic strap.
•
Remove all of the water hoses
connected to the motor.
•
Remove the left radiator.
•
Loosen all of the engine bolts [A].
•
Loosen the swing arm bolt.
•
Remove the brackets that attach the
cylinder head to the chassis.
•
Remove the motor mounting bolts.
•
Remove the swing arm bolt.
•
Remove the motor.
10/54
Reinstalling the motor:
•
The motor should be reinstalled in the
frame in the reverse order of how it was
removed. The following torque values should
be utilized.
Tightening torques :
Motor mounting bolts: 60Nm
Swing arm axle nut: 100 Nm
Clutch receiver screws: 10 Nm
Cylinder head bracket bolts: 23Nm
Exhaust mounting bolts: 10Nm
11/54
Motor top end
For additional details refer to the parts catalog SE 250i_SE 300i..
Removing the cylinder head:
•
•
•
Remove the spark plug.
Remove the valve cover.
Remove the three valve cover screws.
These three screws are equipped with orings ref: 0900.
•
A
Remove the cap from the ignition cover.
[A].
•
Remove the timing control plug [A]
•
Turn the engine counterclockwise in
order to align the timing marks on the
crankshaft with the marks on the timing gear.
Install the special tool that locks the engine at
Top Dead Center [A] (ref 1819)
A
A
12/54
•
Remove the screws from the cam chain
tensioner as shown in the photo.
•
Remove the cam chain tensioner.
•
Remove the spark plug well.
2
1
3
7
5
4
2
•
Remove the camshaft bearing journal.
Starting on the inside, remove the screws
In a criss cross manner (see the numbers on
the photo).
3
6
•
clip.
•
•
clip.
•
Remove the exhaust camshaft retaining
Remove the exhaust camshaft.
Remove the intake camshaft retaining
Remove the intake camshaft.
•
Remove the two nuts M6 and the
washer.
1
13/54
•
Remove the cylinder head bolts (Be sure
to loosen them in the correct direction).
Black bolt N°1 on the picture is longer , 3
bolts are identical .
•
•
Remove the cylinder head.
Remove the head gasket and the
cylinder.
2
4
3
1
Motor top end:
Inspection of the cylinder for wear:
Measure the inside diameter of the cylinder
when it is cold.
•
Inspect the inside of the cylinder for any
scratches or other evidence of abnormal wear.
If the cylinder is badly damaged or worn it
should be replaced.
•
Since the cylinder does not wear in a
uniform manner measure in from side to side
and up and down as shown.
If the inside measurement of the cylinder
exceeds the tolerance limit it must be replaced.
(A)=10 mm
(B)=25 mm
Piston / cylinder clearance
To determine the piston / cylinder clearance as
accurately as possible it is sufficient to measure
the piston and the cylinder, and then calculate
the difference between the two values.
Measure the diameters as shown.
Piston / cylinder clearances
Standard 0.03 – 0.05 mm
Limit 0.10 mm
Standard SE 250i-R:
Cylinder diameter (A) = 77.982±0.01 mm
Cylinder diameter (B) = 77.982~77.995 mm
Taper limit 0.05 mm
Out of round limit 0.05 mm
Standard SE 300i-R:
Cylinder diameter (A) = 83.982±0.01 mm
Cylinder diameter (B) = 83.982~83.995 mm
Taper limit 0.05 mm
Out of round limit 0.05 mm
14/54
Piston wear:
•
Using a micrometer measure the outside
diameter of the piston [A] 10mm [B] above the
bottom of the piston and at right angles to the
axis of the piston.
If the outer diameter of the piston is below the
tolerance it must be replaced.
Piston 250i-R= 77.950±0.005 mm
Piston 300i-R= 83.950±0.005 mm
Ring groove / piston ring:
•
Using a feeler gauge measure the
clearance between the piston ring and the ring
groove.
•
Check in several places to determine the
actual clearance if the clearance is greater than
the maximum, replace the piston ring and if
necessary the piston.
Ring groove / piston ring
Standard
Compression ring: 0.030-0.065 mm
Limit 0.13 mm
Oil control ring: 0.020-0.055 mm
Limit 0.13 mm
Ring end gap
Compression ring: 0.3-0.4 Limit 0.7 mm
Oil control ring: 0.3-0.5 mm
Inspect the connecting rod, the piston pin and
the piston for wear:
•
Visually inspect the circlips in place.
If they appear worn or distorted replace them. If
the hole for the circlips appears worn replace
the piston.
•
Measure the piston pin with a
micrometer.
If at any place on the pin the diameter is below
the limit replace the piston pin.
•
Measure the diameter of the piston pin
holes in the piston and the hole in the
connecting rod. If the one or more holes in the
piston are incorrect replace the piston.
If the diameter of the hole in the connecting rod
is incorrect, replace the connecting rod.
Piston pin diameter
15.997-16.000 mm
Piston pin hole diameter in the piston
16.004-16.009 mm
Connecting rod hole diameter
16.000-16.011 mm
15/54
Check the camshafts for wear:
•
Remove the camshafts.
•
Measure the heights [A] of the camshaft
lobes with a micrometer.
If the cams are worn beyond the limits, replace
the cams.
Camshaft height limit 250
Exhaust: 31.245 mm
Intake: 32.145 mm
Camshaft height limit 300
Exhaust: 31.977 mm
Intake: 32.145 mm
Checking the camshafts and camshaft journals
for wear:
•
Measure the clearance between the
camshaft and the camshaft journals using
plastigage [A].
Lubricate the fixing bolts with engine oil and
tighten to the proper torque.
Tightening torque
Camshaft journal mounting bolts: 10 Nm
If any of the measurements are over the limit,
then measure the diameter of each journal.
Camshaft / journal clearance
Standard: 0.020 – 0.062 mm
Limit: 0.15 mm
If the diameter of the journal is below the limit
replace the camshaft and measure again.
Camshaft journal diameter
Standard: 23.05 – 23.25 mm
Limit 23.02 mm
If the clearance is outside of the tolerance
limits, replace the entire cylinder head.
Eccentricity of the camshaft:
Measure the camshaft runout.
If it is out of tolerance, replace the camshaft.
Runout: Less than 0.03 mm
16/54
Inspect the cylinder head for flatness:
•
Place the cylinder head on the
fezf
workbench
•
Using a precision straight edge [A] and a
feeler gauge check the head for warpage;
check in several places as shown in the photo.
If the warpage is above the limit, repair if
possible. If the damage is severe replace the
head.
Cylinder head warpage:
Limit = 0.05 mm
Visually inspect the timing chain for damage:
Inspect the timing chain by flexing it to
determine if there are any tight spots. If tight
spots are found it should be replaced.
Check the automatic chain adjuster and make
sure that it is not in the last ratchet notch.
Visually inspect the cam tensioner guides:
Visually inspect all of the cam chain tensioner
channel guides and pads including the ones on
the cylinder head cover.
Change as necessary.
Valve - Guide clearance :
Intake :
Mini clearance : 0.02 mm
Maxi clearance : 0.045 mm
Escape:
Mini clearance : 0.04 mm
Maxi clearance : 0.065 mm
17/54
Reassembling the top end of the motor:
Reassemble the piston
•
Install the piston rings on the piston with
the end gaps as shown in the photo, the
compression ring goes in the top groove and
the oil control ring goes in the bottom groove.
A Lower expander end gap
B Lower piston ring end gap
C Upper expander end gap
D Upper piston ring gap
The expander rings do not have a top or
bottom; however the oil control ring and the
compression ring must be installed with the
« N » mark facing up.
•
Apply engine oil to the wrist pin internal
bore in the piston.
•
Carefully note the piston orientation (the
small cut outs are on the exhaust side)
•
Install the locating pins [B].
•
Install the base gasket [C].
•
Use special tool number 1821 to
maintain the piston in the correct location [A].
•
Place one of the cir clips in the special
tool number 2075 as shown in the photo; install
the clip close to one end of the tool.
•
Use the tool to set up the clip for
installation on the wrist pin.
•
Install the cir clip on the wrist pin.
C
A
B
18/54
•
Install the wrist pin into the piston and
connecting rod using the tool and lightly tapping
with a hammer.
•
Install the opposite circlip, using the
special tool.
•
Install the cylinder over the piston using
an appropriate ring compressor.
•
[A].
•
•
B
Install the two cylinder head locating pins
Install the head gasket [B].
Install the cylinder head.
A
•
Install the head bolts noting the different
lengths; tighten them using two passes in the
order shown in the photo.
•
Install and tighten the two M6 nuts.
Cylinder head torque:
Studs
1st pass: 30 Nm
2nd pass: 50 Nm
Nuts M6: 10 Nm
The two internal bolts are of different
length and are equipped with washers.
2
4
3
1
19/54
Valve timing:
•
Verify that tool number 1819 is still
properly installed.
•
Install the intake cam.
•
Install the exhaust cam.
(see the photo for how to set the timing marks)
IN (Admission)
EX (Echappement)
The timing marks should align with the joint
•
Install the camshaft retaining clips.
•
Apply moly disulfide grease to the
camshafts.
20/54
•
Install the camshaft retaining cover. (pay
careful attention to the tightening order).
Camshaft retaining cover torque
10Nm
•
Install the camshaft chain tensioner
using a new gasket.
Torque the two fixing bolts to:
10Nm
•
Install the cam tensioner adjusting bolt
(pay attention to the o-ring).
Torque the tensioner adjusting screw to:
10Nm
•
Remove the special tool number 1819.
•
Rotate the engine a few times to make
sure that the valve timing is correct.
•
Finally check the valve timing using the
timing marks.
•
Replace the cap that was removed to
install tool number 1819.
Torque the cap to:
8Nm
•
Replace the spark plug well.
Make sure that the o-rings are installed on
the spark plug well.
7
5
6
4
1
2
3
21/54
•
Apply a thin coat of silicone to the
camshaft end cap bores.
•
Replace the valve cover.
•
Install the valve cover installation bolts.
Torque the bolts to:
8Nm
Checking the valve clearance:
•
The valve clearance must be checked
when the engine is cold.
•
Remove the spark plug and the valve
cover.
•
Remove the timing plug from the
crankcase.
•
Install special tool number 1819.
•
With a feeler gauge measure the
clearance between the bucket and the cam.
Valve clearance
Intake
0.15 – 0.20 mm
Exhaust
0.20 – 0.25 mm
•
If the clearance is not correct then
change the discs in order to obtain the correct
gap.
•
Remove the discs with a magnet.
•
Measure the thickness of the disc and
replace with one of the correct thickness.
Select the appropriate disc from the existing
parts catalog.
22/54
Replacing the cam chain:
•
Remove the camshafts (see the chapter
on the motor top end).
•
Remove the clutch cover (see the
chapter on « Right side » removing the clutch).
•
Remove the chain tensioner adjuster.
•
Remove the cam chain.
•
Inspect the cam chain (see « visually
inspecting the cam chain »).
•
Install the cam chain in the opposite
manner in which it was removed.
•
Reinstall the cam tensioner bolt and
tighten to the correct torque.
Torque the cam tensioner bolt to:
10Nm.
Côté Droit
23/54
Disassembling the right side
For additional details see the parts catalog 250i and 300i.
Clutch dismantling:
•
Install special tool number 1819.
5
3
2
Only use this tool for disassembling the
clutch, do not use it to remove the hub fixing
nut.
•
Remove the 4 screws that retain the
clutch cover.
•
Remove the 5 pressure plate screws
(see the photo).
•
Sort the discs and make sure they are
trimmed and smooth.
•
Make sure that the clutch hub rotates
freely.
Inspect the clutch:
•
Inspect the discs to make sure they are
trimmed and smooth.
Friction plate thickness
Standard: 2.95
Limit: 2.7
Deformation limit: 0.3mm
Steel disc thickness
Standard: 1.4
Limit: 1.3
Deformation limit: 0.3mm
Check the clutch spring length:
•
Measure the free length of the clutch
springs.
Standard: 37.29mm
Limit: 36.5mm
Reassembly of the clutch:
•
Soak the friction discs in engine oil.
•
Replace the discs on the hub by starting
with a friction disc and then a steel disc ending
with a friction disc.
•
Replace the pressure plate.
•
Install the 5 springs.
•
Install the 5 screws and tighten in an
alternating order (see the disassembly photo).
Torque the screws to:
10Nm
4
1
24/54
•
Reinstall the clutch cover, inspect the oring and replace if it is damaged.
Disassembling and inspecting the water pump:
•
Drain the coolant by removing screw [A].
•
Remove the screws from the water pump
housing.
•
Remove the water pump impeller using a
10 mm socket.
If the seal is leaking, coolant will come out
of the weep hole (see photo). In order to
change the seal the clutch housing must be
removed.
Changing the water pump shaft seal requires
removing the clutch housing:
•
Remove the clutch housing.
•
Remove the clip from the water pump
shaft.
•
Remove the water pump shaft.
•
Remove the roll pin.
•
Heat the clutch case in an over to 70°.
•
Extract the bearing.
•
Change the seal using special tool
number 1968.
Attention makes sure the seal is installed
properly, you should see the spring when you
look at the seal. (see photo).
•
Check the bearing, if it requires changing
use special tool number 1822.
•
Reinstall the parts in the reverse order of
their removal. Pay careful attention to the clutch
housing locating pins, always install a new
paper gasket and if necessary install a new oring seal on the water pump housing.
Tighten the water pump housing screws to:
10Nm.
Tighten the coolant drain plug to:
6Nm.
A
25/54
Removing the clutch hub and the clutch basket:
•
Drain the engine oil and the engine
coolant.
•
Remove the clutch housing. (see
disassembling the right side paragraph)
•
Remove the clutch. (see clutch removal
paragraph)
•
Remove the clutch release bearing
assembly.
•
Retain the clutch hub using tool 1814.
•
Loosen the clutch hub nut.
Attention, make sure the special timing
tool number 1819 is not installed, if it is, severe
damage could occur to the crankshaft and
crankcase.
•
Remove the hub and the nut.
•
Inspect the needle bearings and replace
if necessary.
•
Visually inspect the hub and the housing.
Reassembling the clutch hub components:
•
Install the thrust washer.
•
Install the needle bearings.
•
Install the clutch housing.
•
Install the spacer washer.
•
Install the clutch hub.
•
Apply engine oil to the shaft threads and
the fixing nut.
•
Install the conical washer.
•
Install the fixing nut.
Torque the fixing nut to:
80Nm.
•
Check for free rotation of the clutch hub.
•
Reinstall the clutch release bearing
assembly, the clutch and the clutch housing in
the reverse order of their removal.
26/54
Disassembling the left side
For additional details refer to the parts catalog 250i and 300i.
Disassembling the ignition case:
•
Drain the engine oil.
•
Remove the 10 screws that retain the
ignition case.
•
Visually inspect the inner surfaces of the
rotor [A] and the outer surfaces of the stator [B].
•
Check the pulse generator (sensor)
•
Replace if necessary.
A
Replacing the stator and sensor system:
•
Remove the two screws that retain the
sensor [C] and the two screws that retain the
stator [D].
•
Install the new parts.
•
Reinstall the screws using the proper
torque.
Torque the stator and sensor screws to:
8Nm.
Removing the rotor:
•
Utilize the special rotor holding tool
number 1815.
•
Remove the rotor fixing nut.
C
B
D
27/54
•
Remove the flywheel using special tool
number R462.
•
Remove the two starter shafts along with
the starter gears.
•
Remove the oil centrifuge (anti blowby)
Attention the threads this screw are LH,
do not turn the wrong direction.
• Remove the freewheel. (see photo)
Inspect the freewheel and the needle bearings:
•
•
•
•
•
•
Visually inspect the caged needle bearings.
Replace if necessary.
Inspect the condition of the freewheel.
Replace if necessary.
Finally check the rollers on the freewheel.
Replace if necessary.
If the freewheel must be replaced then
the rest of the gears must be replaced and vice
versa.
28/54
Reassembling the ignition case:
•
Apply grease to the caged needle
bearing and reinstall it.
•
Reinstall the two starter shafts and their
gears.
•
Visually inspect the oil seal on the oil
centrifuge.
•
Use special tool number 1818 to install
the oil centrifuge.
Tighten the oil centrifuge fixing screw to the
appropriate torque.
This screw thread is reversed, it is a LH
thread.
•
Screw and tighten the centrifuge.
Torque the centrifuge fixing screw to: 8 Nm.
•
Inspect the rotor key, change if
necessary.
•
Install the rotor (turn the rotor counter
clockwise to help facilitate the installation of the
lighting rotor).
•
Apply proper tightening torque to the nut
on the rotor with strong threadlocker.
•
Install the conical washer.
•
Using special tool number 1815 to hold
the rotor tighten the fixing nut.
Torque the fixing clutch nut to 80 Nm with
medium threadlocker.
•
Install the remaining shafts and gears.
•
Install the two case locating pins.
•
Install a new gasket.
•
Install the ignition crankcase cover and
tighten the 10 screws.
Torque the ignition crankcase cover screws
to: 10 Nm.
29/54
Crankcase / Transmission / Central crankcases
Disassembling
crankshaft:
the
transmission
and
the
•
Remove the engine from the frame (see
the engine removal chapter).
•
Remove the top end (see the top end
chapter).
•
Remove the ignition components (see
the ignition chapter).
•
Remove the clutch components (see the
clutch chapter).
•
Remove the cam drive chain (see the
top end chapter).
•
Remove the cam chain tensioner and
guides.
•
Block the transmission primary gear with
special tool number 1817.
•
Loosen the fixing nut for the counter
balancer.
•
Remove the counter balancer weight.
•
Remove the freewheel / crankshaft
spacer using a two armed gear puller. (see
photo)
•
Remove the engine oil pump cover.
•
Block the transmission primary gear with
special tool number 1817.
•
Remove the transmission primary gear.
•
Remove the clutch basket, the needle
bearings and the thrust washer.
•
Remove the primary transmission gears.
•
Remove the oil pump drive gear.
•
Remove the oil pump cover.
•
Remove the oil pump rotor.
•
Remove the oil pump shaft.
•
Remove the gear selector shaft.
•
Using special tool number 2073 block
the gear selector drum and remove the gear
selector index wheel screw...
•
Remove the gear selector index wheel.
•
Remove special tool number 2073.
•
Remove the starter motor.
•
Loosen and remove the 13 central
crankcase screws.
30/54
•
Remove the Right side crankcase.
•
Remove the crankshaft.
•
Remove the counter balancer assembly.
•
Remove the shifting fork shafts.
•
Remove the gear selector drum.
•
Remove the shift forks.
•
Remove the remaining transmission
components.
Checking the transmission components:
•
Check the condition of all the gears.
Inspect the engagement dogs [A], look at all of
the gear teeth [B] and the fork shifting groove
on each gear [C].
If any of the parts are damaged or badly worn
they should be replaced.
B
•
Check the condition of all the shifting
forks.
Replace the shifting forks if necessary.
•
Check the condition of the gear selector
drum, make sure it is not deformed, damaged
or badly worn.
Replace the gear selector drum if necessary.
C
A
31/54
Checking the crankshaft:
Radial play of the big end bearing:
•
Place the crankshaft in a set of V blocks
and install a dial indicator as shown [A].
•
Push the rod [B] in the direction of the
indicator and then push it in the opposite
direction. The difference between these two
readings is the radial play.
Radial play of the big end bearing:
Standard: 0.015 mm – 0.020 mm
Tolerance limit: 0.06 mm
If the radial play exceeds the tolerance limit the
crankshaft must be replaced.
Lateral movement of the big end:
•
Measure the lateral movement of the big
end [A].
Lateral movement of the big end:
Standard: 0.2 mm - 0.3mm
Tolerance limit: 0.55 mm
If the lateral movement of the big end exceeds
the tolerance the crankshaft must be replaced.
Checking the run out:
•
Place the crankshaft in a lathe or
suitable support, place dial indicators as shown.
•
Turn the crankshaft and record the
readings. The maximum difference between the
readings is the crankshaft run out.
Run out:
Standard: 0.02 mm maximum
Tolerance limit: 0.08 mm
If the run out exceeds the tolerance, replace
the crankshaft or straighten it so that it meets
the tolerance.
32/54
Checking the center crankcases:
•
Inspect the general condition of the
center crankcases for wear and cracks.
Replace the center crankcase if necessary.
•
Inspect the condition of all the bearings.
Replace the bearings if necessary.
•
Inspect the condition of the crankshaft
bearings.
Replace the crankshaft bearings if necessary.
•
To remove the bearings, install tool
number R464, heat the tool and the bearing.
•
Remove the bearing.
The radial play in the roller bearings must
be practically zero.
33/54
Reassembling the central crankcase assembly:
During the rebuild, replace all seals
(paper, seal, o-ring…).
•
Install the crankshaft and counter
balancer assembly in the left case, align the
marks as shown.
•
Install the transmission gear along with
their corresponding shafts.
•
Install a new roller on each shift fork.
•
Install the shift forks in the transmission
in their respective grooves.
•
Install the gear selector drum.
•
Place the shift fork rollers in their
respective grooves in the drum.
•
Install the shift fork shafts.
The center shift fork shaft is the smallest
in diameter.
Do not forget to lubricate all of the rotating
and sliding parts.
•
Replace the two locating dowels in the
case and install the washer on the transmission
secondary shaft.
34/54
•
On the right hand case make sure the
breather jet is in place.
•
Place the right case on the left case
previously fabricated.
•
Install the 13 screws that retain the two
halves together.
Torque the 13 center crankcase screws to:
10 Nm.
•
Install special tool number 2073 to keep
the gear selector drum from rotating.
•
Install the locating pin, the gear selector
index wheel and the fixing screw.
Torque the gear selector index wheel fixing
screw to: 10 Nm.
•
Remove the special tool number 2073.
•
Install the gear selector shaft.
•
Install the oil pump shaft, the roll pin and
the internal oil pump rotor.
•
Install the oil pump cover and tighten the
cover screws to the appropriate torque.
Torque the oil pump cover screws to: 5 Nm.
•
Install the oil pump drive roll pin, the
drive gear and the cir clip.
•
Install the primary drive gear.
•
On the transmission input shaft install
the thrust washer, the needle bearings the
clutch basket, the spacer washer, the clutch
hub and the conical washer.
•
Using an appropriate solvent clean the
crankshaft threads and the input shaft threads.
•
Install the fixing nuts on the crankshaft
and the transmission input shaft.
•
Apply the proper torque these fixing
nuts.
•
Install special tool number 1817 and
torque the crankshaft fixing nut.
Torque the crankshaft fixing nut to: 120 Nm.
•
With the special tool still installed, torque
the transmission input fixing nut.
Torque the transmission input fixing nut to:
80 Nm.
35/54
•
Install the special tool that locks the
engine at top dead center (ref 1819).
•
Use tool 1817 to block the transmission
ant to tighten balancer nut.
Torque of balancer nut 60 Nm +
threadlocker.
•
Install the oil pump drive roll pin, the
intern rotor and fixing nut to the cover.
Torque of the oil pump cover : 5 Nm.
•
Heat the crankshaft spacer ring (ref
1732) to approximately 70 degrees and install it
on the crankshaft.
•
Replace the freewheel assembly and the
starter drive gear train (see the paragraph on
disassembling the left side).
•
Reinstall the starter.
•
Reinstall the motor top end (see the
paragraph on the top end).
•
Install the cam drive chain (see the
paragraph on top end).
•
Install the clutch (see the paragraph on
disassembling the right side).
•
Install the clutch cover.
•
Install the spark plug.
Torque the spark plug to: 15 Nm.
Apply threadlocker to all of the internal
engine threads except the five clutch pressure
plate fixing screws.
36/54
Tightening torques
Standard torque
Threadlocker
M5
6 Nm
M6
10 Nm
M8
24 Nm
M10
40 Nm
Frame tightening torques
Threadlocker
Rear wheel axle nut
100 Nm
Aluminium sub frame bolts
24 Nm
Front wheel axle nut
40 Nm
Front fork /axle bolts / axle M6
15 Nm
Brake pad bolt
8 Nm
Botton plat fork bolts
Wp 12 Nm
Sachs 15 Nm
Upper plat fork bolts
Wp 17 Nm
Sachs 17 Nm
Motor screw
60 Nm
Swing arm nut
100 Nm
Cylinder head-frame srews
23 Nm
Motor tightening torques
•
•
Threadlocker
Magnetic drain plug
22 Nm
Drain plug with prefilter
22 Nm
Oil filter cover
15 Nm
Spark plug (with copper grease)
15 Nm
Bolt for bleeding cooling system
6 Nm
37/54
Motor tightening torques
Threadlocker
Ignition sensor screw
8 Nm
Bolt for bleeding cooling system
6 Nm
Clutch slave cylinder screw
9 Nm
Exhaust bolt
10Nm
•
Cylinder head
1st pass
2nd pass
Hexagon nut M6
30 Nm
50 Nm
10 Nm
Camshaft cap
10 Nm
Chain tensioner screw (x2)
10 Nm
Chain tensioner screw (x1)
10 Nm
Timing control plug
8 Nm
Chain guide screw
10 Nm
Clutch pression screw
10 Nm
Water pump cover
11 Nm
Rotor nut
100 Nm
•
Clutch nut
80 Nm
•
Oil breather wheel
8 Nm
Ignition cover
10 Nm
Crankcase screw
10 Nm
Gear selector drum screw
10 Nm
Oil pump cover
5 Nm
Balancer nut
60 Nm
•
•
38/54
Clean injector body
Material :
- Minerva Net Carbu
- Allen keys of 4
- Screwdriver
- Wrench of 8
Put down the injector body
- Remove the seat
- Remove the fuel tank
- Remove the injector body cover
39/54
- Disconnect the injector connector
- Disconnect the TPS plug
- Remove the throttle cable
- Unscrew the hose clamps
- Remove the injector body
Throttle cable
Hose clamp
40/54
Clean of injector body
- Clean the injector body with Net Carbu
- Make sure you clean perfectly the edge of the
mixture throttle on each side by opening it
completely
- Clean the injector
- In order to keep the air screw adjustment, screw it
completely and count the number of turns
- Remove the air screw, clean it and clean the
location.
- Replace the air screw with its initial adjustment.
Edge of the mixture throttle
Replace the injector body
- Put back all the parts together again, put some
connector grease inside the electrical connectors
(TPS plug, injector plug)
- Set the throttle cable
Air screw
41/54
SHERCO diagnostic tools
Your Sherco 250i/300i/450i/510i is equipped with a Magneti Marelli fuel injection system. This
system consists of a computer (ECU), an injector body, a fuel pump and various sensors (air
pressure, air temperature, engine temperature and butterfly position sensor). To perform the
diagnosis you must install the Sherco Vehicle Diagnostic Scan Tool Software (VDSTS).
SHERCO reference R471. This software does not change the fuel injection map. This is only a
diagnostic tool.
Num
Designation
Emplacement
1
Housing ECU+ atmospheric pressure sensor
2
Butterfly position sensor (TPS)
Above the engine under the main frame.
The sensor is built into the ECU box.
On the right side of the injector body
3
Air temperature sensor
At the top and back of the air box
4
Water temperature sensor
At the rear of the cylinder head
5
Engine speed sensor
Upper Ignition crankcase
3
4
2
5
1
42/54
Contents of the diagnostic kit :
The diagnostic kit consists of an RS232 cable, battery cables and theVDSTS software.
Software installation
Insert the CD-ROM "Scan-Vehicle Diagnostic Software Tool" in your computer drive.
Run Setup setup.exe
Then follow the instructions on the screen.
Restart the computer.
Software presentation (the various interfaces) :
► Communication menu : Allows you to select the serial port of your computer which is the
cable plugged into the vehicle
► Instruments menu : Allows you to view real-time engine speed, battery voltage, the butterfly
opening, engine temperature, ambient temperature, atmospheric pressure, etc.
► Graphs : Reproduces real-time graphical data.
► Bar graph menu : Reproduces the data in bar graph format.
► Function test menu : Allows you to test various components of the injection system.
► Configuration menu : Allows you to check the synchronization the ECU / injector body and
the CO.
► System error menu : Allows you to access the history of defects and flaws that have
occurred.
► System status menu : Allows you to verify if all components of the system are functioning
properly.
43/54
► Connectcion : Allows you to connect to the vehicle.
► Disconnect : Allows you to disconnect from the vehicle.
► Ecu choice menu : When you connect to the vehicle, the software automatically recognizes
the type of ECU.
Connecting the diagnostic kit wiring
Connect the serial cable RS232 to the serial port of your computer (laptop or desktop).
Connect the power cable to the battery. Red connector on the + battery terminal, black
connector to the – battery terminal.
Connect the male 3-way diagnostic connector to the motorcycle.
The diagnostic connector is located on the right of the steering column of the motorcycle.
Start the program by selecting the desired language.
Turn the motorcycle ignition on.
Connection problem ?
Check that:
-the battery voltage is sufficient (> 12V)
-the serial port of your computer corresponds to that of the software (change the port in the
Communication menu).
Performing diagnostic
The ECU backup memory detects any component defects. With the VDSTS you can view the
current status and history. If there is a problem with your vehicle, the first thing to check is for
any error message in the ECU memory:
►Instrument screen menu
►E/S function errors
44/54
To establish communications, use the "Connection menu" by clicking on the icon or selecting
the menu command in the software.
When you start the motorcycle, if there is a default, a message will appear on the screen.
Errors code :
Air temperature: “O.C/High V.” ou “S.C./Low V.”
Engine Temperature: “O.C/High V.” ou “S.C./Low V.”
Pressure: “O.C/Low V.” ou “S.C./High V.”
Papillon Pos.: “O.C/High V.” ou “S.C./Low V.”
Crank Pos.: “Crank Pos Signal Error (LED rouge)
Battery Volt.: “O.C/High V.” ou “S.C./Low V.”
Injecteur 1: “O.C/Low V.” ou “S.C./High V.”
Bobine 1: “O.C/Low V.” ou “S.C./High V.”
Tacho.: “O.C/Low V.” ou “S.C./High V.”
Definition :
O.C.: Circuit Ouvert (Open Circuit)
S.C.: Court circuit (Short Circuit)
High V.: Haut Voltage (High Voltage)
Low V.: Bas Voltage (Low Voltage)
45/54
The diagnostic operations are carried out in the menu Function, Test / Active test you can test
various components of the injection system. When you test a component, a green light will
appear.
You can test the following components: fuel injector, fuel pump, ignition coil voltage and the
various engine sensors (the bike should be at its operating temperature and running for these
tests).
Synchronizing the ECU / with the butterfly openning sensor (TPS)
A feature of the Magneti Marelli system is the requirement to synchronize the injector body with
the ECU if any of these parts have been replaced. If you have to replace either the fuel injector
body or the TPS, or both of these electronic components, you must do the following:
► Go to the Configuration Menu
► Click Erase errors. The green light is switched to OK.
► Click on TPS. The green light is switched OK. Otherwise, check the TPS sensor and ECU by
returning to the Function Test Menu.
46/54
Value
of
the
butterfly
angle
position
should
be:
2.7
<3.1
<3.5
Check that the painting has not accidentally removed from the butterfly stop screw. Never touch
the butterfly stop screw.
The bike must be in perfect working condition (valves adjusted properly, fresh air filter, etc.).
Check that air by-pass air screw at the injector body is not unscrewed over two TURNS out
(factory
value:
1
round).
Make this adjustment with the engine running.
1- For this operation you must have a lambda probe and a gas analyzer.
- Run the engine until it reaches 80 ° C.
- Connect the CO detector
- Perform the test in real conditions (saddle and air filter installed)
- In the Configuration menu, set the CO at 5%
Do not exceed the range of -15 to +15. If you must get out of this range, there is a
problem (injector, TPS sensor, etc.).
2 – If you do not have a lambda probe and gas analyzer.
If your perfectly tuned bike has an unstable idle you can set it using the Trimmer function.
Do not exceed the range of -15 to +15. If you must get out of this range, there is a
problem (injector, TPS sensor, etc.).
Idle speed : 2.5i : 2200 +/-100tr/min
47/54
Electrical installation checking
Static values (engine off)
Tension battery : > 12.5V
Stator resistance : 1.5/1.6 Ohms
Pick up sensor : 170 Ohms
Check there is no continuity between stator and the ground of the motorcycle
Regulator
Dynamic values
Alternative 200V alternative caliber)
Low rpm: 22V +-2V
A 6000 rpm : 77V+-3V
Continue
Regulator pins out (Caliber 20V continue)
A 4000 tr/min : 14.6V + Red/white, - Green
VBATT = 13,5V
IBATT
A
BATT
V
REG
FLYWHEEL
Battery recharge current
Battery voltage const = 13.5V
Tolérance on typical values = -5% / +10%
r.p.m.
1000
1200
1500
2000
2500
3000
4000
5000
6000
Ampere d.c.
5,0
8,5
11,6
13,8
15,0
15,6
16,2
16,6
16,8
48/54
Cable diagram (Injection / light)
Injection beam
ECU connections :
N° PIN
Fonction
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
5 volts
NC
RPM (information)
Water temperaturel
Ventilator
NC
RPM sensor NC
Diagnostique connector
Dignostique connector
TPS sensor
RPM sensor +
Injector
NC
NC
GND for double ignition mapping
+V_BATT +12v
Water temperature
Fuel relay
Ignition spark plug
NC
Sensor GND
GND Power
NC
NC
+ After Key
49/54
Cable diagram :
50/54
Light beam
Dashborad connection :
Dashboard reference 3522
Dashbord connector ref
3522 Rear view
N° PIN
Fonction
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
V_BATT (+batt 12v)
Fuel
Rpm
+ Après contact
High beam
VCC_Hall
NC
Sens_In
Neutral
Oil
GND
NC
Right indicator
Left indicator
Reserved
GND
GND
GND
51/54
Cable diagram :
52/54
Racing lighting cable diagram :
53/54
Flasher installation cable diagram :
54/54
Fan cable diagram :
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