ILLUSTRATED SYMBOLS
The following symbols are not relevant to every
vehicle.
Illustrated symbols 1to 8are printed on the top
right of each page and indicate the subject of
each chapter.
1General information
2Specifications
3Periodic inspections and adjustments
4Chassis
5Engine
6Carburetor
7Electrical system
8Troubleshooting
Illustrated symbols 9to yare used to identify
the specifications appearing in the text.
9Can be serviced with engine mounted
0Filling fluid
qLubricant
wSpecial tool
eTorque
rWear limit, clearance
tEngine speed
yElectrical data
Illustrated symbols uto sin the exploded dia-
grams indicate the types of lubricants and lubrica-
tion points.
uApply engine oil
iApply gear oil
oApply molybdenum disulfide oil
pApply wheel bearing grease
aApply lightweight lithium-soap base grease
sApply molybdenum disulfide grease
Illustrated symbols dto fin the exploded dia-
grams indicate the following:
dApply locking agent (LOCTITE
®)
fReplace the part
GEN
INFOSPEC
INSP
ADJCHAS
ENGCARB
ELECTRBL
SHTG
New
12
34
?
56
78
90
qw
er
ty
uoi
psa
df
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SPEC
CHAPTER 2.
SPECIFICATIONS
GENERAL SPECIFICATIONS............................................................................................ 2-1
MAINTENANCE SPECIFICATIONS....................................................................................2-4
ENGINE ........................................................................................................................2-4
CHASSIS ....................................................................................................................2-12
ELECTRICAL ..............................................................................................................2-17
GENERAL TORQUE SPECIFICATIONS............................................................................2-19
CONVERSION TABLE........................................................................................................2-19
LUBRICATION POINTS AND LUBRICANT TYPES..........................................................2-20
ENGINE ......................................................................................................................2-20
CHASSIS ....................................................................................................................2-21
LUBRICATION LAYOUT....................................................................................................2-22
CABLE ROUTING..............................................................................................................2-26
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SPECMAINTENANCE SPECIFICATIONS
2-10
Tightening
Part torque
Part to be tightened
nameThread size Remarks
Nm mkg
Cylinder head Washer
based bol M8 x 1.25 29 2.9
Cylinder head Stud bolt M10 x 1.25 20 2.0
Cylinder head Hexagon socket
head screw M6 x 1.0 10 1.0
Cylinder head Stud bolt M6 x 1.0 7 0.7
Cylinder head:
Cap (oil check) Union bolt M6 x 1.0 7 0.7
Spark plug – M12 x 1.25 18 1.8
Cylinder head cover Hexagon socket
head screw M6 x 1.0 10 1.0
Tappet cover (intake) Hexagon socket
head screw M6 x 1.0 10 1.0
Tappet cover (exhaust) – M32 x 1.5 12 1.2
Cylinder Crown nut M8 x 1.25 22 2.2
Cylinder Nut M10 x 1.25 42 4.2
Cylinder Hexagon socket
head screw M6 x 1.0 10 1.0
Weight drive gear Hexagon nut M16 x 1.0 60 6.0
Rotor (A.C. magneto) Hexagon nut M14 x 1.5 120 12.0
Lock nut (valve adjusting screw) Hexagon nut M6 x 1.0 14 1.4
Cam chain sprocket Washer based
bolt M7 x 1.0 20 2.0
Cam chain stopper guide Hexagon socket
head screw M6 x 1.0 10 1.0
Cam chain stopper guide Washer based
screw M16 x 1.0 20 2.0
Rocker shaft Hexagon socket
head screw M6 x 1.0 10 1.0
Oil pump Hexagon socket
head screw M6 x 1.0 10 1.0
Oil delivery/retrieval pipe Pan screw M6 x 1.0 7 0.7
Oil draining pipe Washer based
screw M14 x 1.5 30 3.0
Oil filter cover Hexagon socket
head screw M6 x 1.0 10 1.0
Bleed screw (oil filter cover) Hexagon screw M5 x 0.8 5 0.5
Push lever (clutch) Pan screw M8 x 1.0 12 1.2
Push rod (clutch) Hexagon nut M6 x 1.0 8 0.8
Sprocket Hexagon nut M18 x 1.0 115 11.5
Lock washer (oil seal) Hexagon screw M6 x 1.0 10 1.0
Stop lever Bolt M6 x 1.0 10 1.0
Shift cam Hexagon screw M6 x 1.0 10 1.0
Stator Pan head (+)
screw M5 x 0.8 5 0.5
Tightening torques
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SPECMAINTENANCE SPECIFICATIONS
2-11
Tightening
Part torque
Part to be tightened
nameThread size Remarks
Nm mkg
Stator (pick-up coil) Hexagon socket
head screw M6 x 1.0 7 0.7
Engine oil pipe 1 Hexagon socket
head screw M6 x 1.0 10 1.0
Engine oil pipe 2 Union screw M12 x 1.25 35 3.5
Oil delivery pipe Union bolt M8 x 1.25 18 1.8
Carburetor joints Hexagon socket
head screw M6 x 1.0 10 1.0
Air filter case (frame) Hexagon screw M6 x 1.0 10 1.0
Air filter case (frame) Washer based
screw M6 x 1.0 10 1.0
Exhaust pipe Washer based
nut M6 x 1.0 10 1.0
Exhaust pipe protector Pan head (+)
screw M6 x 1.0 7 0.7
Muffler Hexagon socket
head screw M8 x 1.25 23 2.3
Muffler (band) Nut, nylon M8 x 1.25 23 2.3
Muffler Washer based
screw M8 x 1.25 23 2.3
Crankcase Hexagon socket
head screw M6 x 1.0 10 1.0
Crankcase Stud bolt M10 x 1.25 20 2.0
Crankcase cover (right) Hexagon socket
head screw M6 x 1.0 10 1.0
Crankcase cover (left) Hexagon socket
head screw M6 x 1.0 10 1.0
Sprocket cover Hexagon socket
head screw M6 x 1.0 10 1.0
Stop washer (bearing) Flat headscrew M6 x 1.0 7 0.7
Pressure plate Washer based
screw M6 x 1.0 8 0.8
Clutch housing Hexagon nut M20 x 1.0 90 9.0
Primary drive gear Hexagon nut M20 x 1.0 120 12.0
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SPECMAINTENANCE SPECIFICATIONS
2-14
Tightening
Part to be tightened Thread torque
Remarkssize
N·mm·kg
Engine mounting and rear frame:
Engine front/Stay engine M10 x 1.25 64 6.4
Stay engine (engine front)/Frame M10 x 1.25 64 6.4
Engine rear under/Frame M10 x 1.25 68 6.8
Engine top/Stay engine M10 x 1.25 64 6.4
Engine protector/Frame M6 x 1.0 7 0.7
Chain tensioner top/Frame M8 x 1.25 23 2.3
Chain tensioner under/Frame M8 x 1.25 23 2.3
Frame/Rear frame (upper) M8 x 1.25 23 2.3
Frame/Rear frame (under) M8 x 1.25 23 2.3
Rear frame/Air filter assy M6 x 1.0 5 0.5
Front fork and steering:
Handle crown/Inner tube M8 x 1.25 28 2.8
Handle crown/Steering shaft M28 x 1.5 4 0.4 See “NOTE”
Steering shaft/Ring nut M36 x 1.5 115 11.5
Holder handle upper/Crown handle M8 x 1.25 20 2.0
Holder handle under/Crown handle M10 x 1.5 40 4.0
Front fork under bracket/Inner tube M8 x 1.25 23 2.3
Front master cylinder/Cap M4 x 0.7 1.5 0.15
Front master cylinder/Handle M6 x 1.0 9 0.9
Union bolt tightening M10 x 1.0 20 2.0
Front fender/Front fork M6 x 1.0 7 0.7
Stay headlight/Handle crown M6 x 1.0 10 1.0
Stay headlight/Bracket meter M6 x 1.0 6 0.6
Headlight/Stay headlight M6 x 1.0 10 1.0
Rear arm and cushion:
Pivot shaft/Frame M14 x 1.5 90 9.0
Arm relay/Frame M10 x 1.25 60 6.0
Arm relay/Rod connecting M10 x 1.25 52 5.2
Arm relay/Shock absorber M10 x 1.25 59 5.9
Rod connecting/Rear arm M12 x 1.25 66 6.6
Shock absorber upper/Frame M12 x 1.25 66 6.6
Seal guard/Rear arm M6 x 1.0 4 0.4
Support chain/Rear arm M6 x 1.0 9 0.9
Chain case/Rear arm M6 x 1.0 9 0.9
Front wheel:
Front wheel shaft/Front fork M16 x 1.5 59 5.9
Axle holder//Front fork M6 x 1.0 9 0.9
Rear wheel:
Rear wheel shaft/Nut M18 x 1.5 115 11.5
Clutch hub/Sprocket M10 x 1.25 48 4.8
Tightening torques
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SPECMAINTENANCE SPECIFICATIONS
2-15
Tightening
Part to be tightened Thread torque
Remarkssize
N·mm·kg
Front brake:
Front hub/Disc brake M6 x 1.0 12 1.2
Front caliper/Front fork M8 x 1.25 25 2.5
Front caliper/Bleeder tightening M10 x 1.0 14 1.4
Union bolt tightening (front) M10 x 1.0 20 2.0
Rear brake:
Rear hub/Disc brake M6 x 1.0 12 1.2
Rear master cylinder/Frame M6 x 1.0 10 1.0
Rear stop switch/Rear master cylinder M10 x 1.0 20 2.0
Rear caliper/Bleeder tightening M10 x 1.0 14 1.4
Protector rear caliper/Rear caliper M6 x 1.0 10 1.0
Union bolt tightening (rear) M10 x 1.0 20 2.0
Rear brake tank reserve/Air cleaner assy M6 x 1.0 5 0.5
Brake pedal/Frame M10 x 1.25 48 4.8
Sidestand/Footrest:
Sidestand mounting bolt/Frame M12 x 1.25 40 4.0
Sidestand mounting bolt/Nut M12 x 1.25 40 4.0
Sidestand switch/Frame M5 x 0.8 8 0.8
Rear footrest/Rear frame M8 x 1.25 30 3.0
Bracket 1 (main footrest)/Frame M10 x 1.25 48 4.8
Bracket 2 (main footrest)/Frame M10 x 1.25 48 4.8
Footrest cover/Footrest M6 x 1.0 10 1.0
Seat, fuel tank and oil tank:
Seat/Frame M6 x 1.0 10 1.0
Bolt (guide seat)/Fuel tank M6 x 1.0 5 0.5
Fuel tank/Rear frame M6 x 1.0 12 1.2
Damper fuel tank (front)/Frame M8 x 1.25 15 1.5
Fuel tank/Fuel cock M6 x 1.0 7 0.7
Oil tank/Sub-oil tank M6 x 1.0 7 0.7
Union bolt (oil hose 2)/Oil tank assy/Engine M12 x 1.25 35 3.5
Oil hose 1/Oil tank/Engine M6 x 1.0 10 1.0
Oil tank/Rear frame M12 x 1.5 20 2.0
Frame, rear fender compl. and lights:
Rear fender compl. (under)/Rear frame M6 x 1.0 2 0.2
Rear fender compl. (upper)/Rear frame M6 x 1.0 7 0.7
Bracket, license/Rear frame M6 x 1.0 10 1.0
Bracket, license/Rear flasher M6 x 1.0 10 1.0
Horn/Frame M6 x 1.0 13 1.3
Regulator/Frame M8 x 1.25 7 0.7
Igniton coil/Frame M5 x 0.8 13 1.3
Battery box/Rear frame M6 x 1.0 7 0.7
Igniter cover/Battery box M4 1 0.1
Main switch/Frame M24 x 1.0 1 0.1
Tail light (lense)/Rear fender compl. M3.5 1 0.1
Starter switch/Red wire M6 x 1.0 7 0.7
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SPECMAINTENANCE SPECIFICATIONS
2-16
Tightening
Part to be tightened Thread torque
Remarkssize
N·mm·kg
Starting motor cord/Starting motor M6 x 1.0 11 1.1
Wire minus lead (-)/Starting motor M6 x 1.0 10 1.0
Front flasher lights/Stay, headlight M6 x 1.0 1.5 0.15
Clutch wire/Engine M6 x 1.0 7 0.7
Assist grip (Standing handle)/Rear frame M8 x 1.25 23 2.3
Speedometer M5 x 0.8 4 0.4
Air filter case 1/Air filter case 2 (L = 13 mm) M3.9 0.5 0.05
Air filter case 1/Air filter case 2 (L = 19 mm) M3.9 1 0.1
Hose clamp/Joint, carburator M4 x 0.7 0.6 0.06
Hose clamp/Air cleaner/Carburator M5 x 0.8 0.8 0.08
Battery (+)/(-) M6 x 1.0 2.5 0.25
NOTE:
1. First tighten the ring nut approximately 38 Nm (3.8 mkg) by using the torque wrench, then loosen the
ring nut one turn.
2. Final tighten the ring nut at the torque of 4 Nm (0.4 mkg).
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2-19
GENERAL TORQUE SPECIFICATIONS
This chart specifies torque for standard fasteners
with standard I.S.O. pitch threads. Torque specifi-
cations for special components or assemblies are
provided for each chapter of this manual. To avoid
warpage, tighten multi-fastener assemblies in a
crisscross fashion, in progressive stages, until the
specified torque is reached. Unless otherwise
specified, torque specifications require clean, dry
threads. Components should be at room tempera-
ture.
A: Distance between flats
B: Outside thread diameter
ABGeneral torque
(nut) (Bolt)specificationsN·m m·kg
10 mm 6 mm 6 0.6
12 mm 8 mm 15 1.5
14 mm 10 mm 30 3.0
17 mm 12 mm 55 5.5
19 mm 14 mm 85 8.5
22 mm 16 mm 130 13.0
CONVERSION TABLE
All specification data in this manual are listed in SI
and METRIC UNITS. Use this table to convert
METRIC unit data to IMPERIAL unit data.
Ex.
METRIC MULTIPLIER IMP
** mm 0.03937 = ** in
2 mm 0.03937 = 0.08 in
CONVERSION TABLE
METRIC TO IMP
Known Multiplier Result
m·kg 7.233 ft·lb
Torquem·kg 86.794 in·lb
cm·kg 0.0723 ft·lb
cm·kg 0.8679 in·lb
Weightkg 2.205 lb
g 0.03527 oz
km/hr 0.6214 mph
km 0.6214 mi
Distancem 3.281 ft
m 1.094 yd
cm 0.3937 in
mm 0.03937 in
cc (cm
3) 0.03527 oz (IMP liq.)
Volume/ cc (cm3) 0.06102 cu·in
Capacity lt (liter) 0.8799 qt (IMP liq.)
lt (liter) 0.2199gal (IMP liq.)
Miscel-kg/mm 55.997 lb/in
laneouskg/cm
214.2234 psi (lb/in2)
Centigrade 9/5 (°C) + 32Fahrenheit (°F)
SPECGENERAL TORQUE SPECIFICATIONS/
CONVERSION TABLE
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