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SPEC
2 - 2
Oil capacity:
Engine oil Periodic oil change 0.8 L (0.70 Imp qt, 0.85 US qt)
Total amount 1.0 L (0.88 Imp qt, 1.06 US qt)
Air filter: Wet element
Fuel: Type Unleaded gasoline only (USA, AUS and NZ) Regular unleaded gasoline only
(CDN, Europe and ZA)
Tank capacity 3.1 L (0.68 Imp gal, 0.82 US gal)
Reserve amount 0.4 L (0.09 Imp gal, 0.11 US gal)
Carburetor: Type VM11
Manufacturer MIKUNI
Spark plug: Type CR7HSA
Manufacturer NGK
Gap 0.6 ~ 0.7 mm (0.024 ~ 0.028 in)
Clutch type: Wet, multiple-disc and centrifugal automatic
Transmission: Primary reduction system Spur gear
Primary reduction ratio 67/18 (3.722)
Secondary reduction system Chain drive
Secondary reduction ratio 37/13 (2.846)
Transmission type Constant mesh, 3-speed
Operation Left foot operation
Gear ratio: 1st 39/12 (3.250) 2nd 33/19 (1.736)
3rd 28/23 (1.217)
Chassis: Frame type Steel tube backbone
Caster angle 25.50 °
Trail 34.0 mm (1.34 in)
Tire: Type With tube
Size (front) 2.50-10 4PR
Size (rear) 2.50-10 4PR
Manufacturer (front and rear) CHENG SHIN
Type (front and rear) KNOBBY
Tire pressure (front and rear) 100 kPa (1.00 kgf/cm
2, 14.2 psi)
Brake: Front brake type Drum brake
Operation Right hand operation
Rear brake type Drum brake
Operation Right foot operation
GENERAL SPECIFICATIONS
1
2
3
4
5
6
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SPEC
2 - 3
Suspension:
Front suspension Telescopic fork
Rear suspension Swingarm (monocross suspension)
Shock absorber:
Front shock absorber Coil spring
Rear shock absorber Coil spring/oil damper
Wheel travel: Front wheel travel 96.0 mm (3.78 in)
Rear wheel travel 71.0 mm (2.80 in)
Electrical: Ignition system CDI
Charging system AC magneto
GENERAL SPECIFICATIONS
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SPEC
2 - 4
MAINTENANCE SPECIFICATIONS
ENGINEItem Standard Limit
Cylinder head: Warp limit ---- 0.05 mm (0.0020 in)
Cylinder: Bore size 35.995 ~ 36.015 mm (1.4171 ~ 1.4179 in)36.05 mm
(1.419 in)
Camshaft: Drive method Chain drive (left) ----
Cam dimensions
Intake “A ” 25.428 ~ 25.528 mm
(1.0011 ~ 1.0050 in) 25.328 mm
(0.9972 in)
“ B ” 21.034 ~ 21.134 mm
(0.8281 ~ 0.8320 in) 20.934 mm
(0.8242 in)
Exhaust “A ” 25.286 ~ 25.386 mm
(0.9955 ~ 0.9994 in) 25.186 mm
(0.9916 in)
“ B ” 21.047 ~ 21.147 mm
(0.8286 ~ 0.8326 in) 20.947 mm
(0.8247 in)
Camshaft runout limit ---- 0.03 mm (0.0012 in)
Cam chain: Cam chain type/No. of links 92RH2005-84M/84 ----
Cam chain adjustment method Automatic ----
MAINTENANCE SPECIFICATIONS
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SPEC
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Rocker arm/rocker arm shaft:
Shaft outside diameter 9.981 ~ 9.991 mm (0.3930 ~ 0.3933 in)9.976 mm
(0.3928 in)
Rocker arm inside diameter 10.000 ~ 10.015 mm (0.3937 ~ 0.3943 in)10.025 mm
(0.3947 in)
Valve, valve seat, valve guide: Valve clearance (cold) IN 0.05 ~ 0.09 mm (0.0020 ~ 0.0035 in)----
EX 0.08 ~ 0.12 mm (0.0031 ~ 0.0047 in) ----
Valve dimensions:
“A ” head diameter IN 16.90 ~ 17.10 mm
(0.6653 ~ 0.6732 in)----
EX 14.40 ~ 14.60 mm (0.5669 ~ 0.5748 in) ----
“ B ” face width IN 1.05 ~ 1.55 mm
(0.0413 ~ 0.0610 in)----
EX 1.05 ~ 1.55 mm (0.0413 ~ 0.0610 in) ----
“ C ” seat width IN 0.9 ~ 1.1 mm
(0.0354 ~ 0.0433 in)1.6 mm
(0.0630 in)
EX 0.9 ~ 1.1 mm (0.0354 ~ 0.0433 in) 1.6 mm
(0.0630 in)
“ D ” margin thickness IN 0.5 ~ 0.9 mm
(0.0197 ~ 0.354 in)----
EX 0.5 ~ 0.9 mm (0.0197 ~ 0.0354 in) ----
Stem outside diameter IN 4.475 ~ 4.490 mm (0.1762 ~ 0.1768 in)4.445 mm
(0.1750 in)
EX 4.460 ~ 4.475 mm (0.1756 ~ 0.1762 in) 4.430 mm
(0.1744 in)
Guide inside diameter IN 4.500 ~ 4.512 mm (0.1772 ~ 0.1776 in)4.550 mm
(0.1791 in)
EX 4.500 ~ 4.512 mm (0.1772 ~ 0.1776 in) 4.550 mm
(0.1791 in)
Stem-to-guide clearance IN 0.010 ~ 0.037 mm (0.0004 ~ 0.0015 in)0.08 mm
(0.0031 in)
EX 0.025 ~ 0.052 mm (0.0010 ~ 0.0020 in) 0.10 mm
(0.0039 in)
Item Standard Limit
BC
DA
Head diameter Face width Seat width Margin thickness
MAINTENANCE SPECIFICATIONS
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SPEC
2 - 6
Stem runout limit ---- 0.01 mm
(0.0004 in)
Valve seat width IN 0.9 ~ 1.1 mm (0.0354 ~ 0.0433 in)1.6 mm
(0.0630 in)
EX 0.9 ~ 1.1 mm (0.0354 ~ 0.0433 in) 1.6 mm
(0.0630 in)
Valve spring: Free length IN 32.45 mm (1.28 in) 30.83 mm (1.21 in)
EX 32.45 mm (1.28 in) 30.83 mm (1.21 in)
Set length (valve closed) IN 24.2 mm (0.95 in) ---- EX 24.2 mm (0.95 in) ----
Compressed pressure (installed) IN 138 ~ 158 N (14.07 ~ 16.11 kg,
31.02 ~ 35.52 lb)----
EX 138 ~ 158 N (14.07 ~ 16.11 kg,
31.02 ~ 35.52 lb) ----
Tilt limit IN ----
2.5 °/1.4 mm
(2.5 °/0.06 in)
EX ----2.5 °/1.4 mm
(2.5 °/0.06 in)
Direction of winding (top view) IN Clockwise ----
EX Clockwise ----
Item Standard Limit
*
MAINTENANCE SPECIFICATIONS
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SPEC
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Piston:
Piston to cylinder clearance 0.030 ~ 0.040 mm (0.0012 ~ 0.0016 in)0.15 mm
(0.0059 in)
Piston size “D ” 35.960 ~ 35.980 mm
(1.4157 ~ 1.4165 in) ----
Measuring point “H ” 5 mm (0.20 in) ----
Piston off-set 0.50 mm (0.0197 in) ----
Offset direction Intake side ----
Piston pin bore inside diameter 12.002 ~ 12.013 mm (0.4725 ~ 0.4730 in)12.043 mm
(0.4741 in)
Piston pin outside diameter 11.996 ~ 12.000 mm (0.4723 ~ 0.4724 in)11.976 mm
(0.4715 in)
Piston rings: Top ring
Type Barrel ----
Dimensions (B × T) 0.80 × 1.60 mm
(0.031 × 0.063 in) ----
End gap (installed) 0.10 ~ 0.25 mm (0.004 ~ 0.010 in)0.50 mm
(0.020 in)
Side clearance (installed) 0.020 ~ 0.070 mm (0.0008 ~ 0.0028 in)0.12 mm
(0.0047 in)
2nd ring
Type Taper ----
Dimensions (B × T) 0.80 × 1.60 mm
(0.031 × 0.063 in) ----
End gap (installed) 0.15 ~ 0.30 mm (0.006 ~ 0.012 in)0.65 mm
(0.026 in)
Side clearance 0.020 ~ 0.060 mm (0.0008 ~ 0.0024 in)0.12 mm
(0.0047 in)
Item Standard Limit
H
D
T
B
B
T
MAINTENANCE SPECIFICATIONS
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SPEC
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Oil ring
Dimensions (B × T) 1.50 × 1.60 mm
(0.059 × 0.063 in) ----
End gap (installed) 0.20 ~ 0.70 mm (0.008 ~ 0.028 in)----
Crankshaft: Crank width “A” 42.95 ~ 43.00 mm (1.691 ~ 1.693 in)----
Runout limit “C” ---- 0.03 mm (0.0012 in)
Big end side clearance “D” 0.10 ~ 0.40 mm (0.0039 ~ 0.0157 in)0.50 mm
(0.02 in)
Big end radial clearance “E” 0.010 ~ 0.025 mm (0.0004 ~ 0.0010 in)0.05 mm
(0.002 in)
Clutch: Friction plate Thickness 2.92 ~ 3.08 mm (0.115 ~ 0.121 in)2.82 mm
(0.111 in)
Quantity 2 ----
Clutch plate 1 Thickness 1.85 ~ 2.15 mm (0.073 ~ 0.085 in)----
Quantity 1 ----
Warp limit ---- 0.2 mm (0.008 in)
Clutch plate 2 Thickness 1.95 ~ 2.05 mm (0.077 ~ 0.081 in)----
Quantity 1 ----
Warp limit ---- 0.2 mm (0.008 in)
Clutch plate 3 Thickness 1.90 ~ 2.10 mm (0.075 ~ 0.083 in)----
Quantity 1 ----
Warp limit ---- 0.2 mm (0.008 in)
Automatic centrifugal clutch: Clutch-in revolution 2,300 ~ 2,700 r/min ----
Clutch-stall revolution 3,210 ~ 3,710 r/min ----
Shifter: Shifter type Shift drum and guide bar ---- Item Standard Limit
B
T
CC
D
A
E
MAINTENANCE SPECIFICATIONS
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Carburetor:
I. D. mark 1P61 00 ----
Main jet (M.J) #62.5 ----
Main nozzle (N.J) E-2M ----
Main air jet (M.A.J) ø 1.4 ----
Jet needle (J.N) 4DL22-1 ----
Cutaway (C.A) 2.5 ----
Pilot outlet (P.O) ø 0.8 × 1.5 ----
Pilot jet (P.J) #12.5 ----
Valve seat size (V.S) ø 1.2 ----
Starter jet 1 (G.S.1) #20 ----
Starter jet 2 (G.S.2) ø 0.6 ----
Float height (F.H) 18.5 mm (0.73 in) ----
Fuel level (F.L) 2.0 ~ 3.0 mm (0.08 ~ 0.12 in) ----
Engine idle speed 1,600 ~ 1,800 r/min ----
Lubrication system: Oil filter type Wire mesh type ----
Oil pump type Trochoid type ----
Inner-rotor-to-outer-rotor-tip clearance 0.15 mm or less (0.0061 in or less)0.20 mm
(0.0079 in)
Outer-rotor-to-oil-pump-housing clearance 0.07 mm (0.0028 in)0.15 mm
(0.0059 in)
Oil-pump-housing-to-inner-rotor-and-outer-
rotor clearance 0.06 ~ 0.10 mm
(0.0024 ~ 0.0039 in)0.17 mm
(0.0067 in)
Item Standard Limit
MAINTENANCE SPECIFICATIONS