SERVICING INFORMATION 7-31
REDUCTION GEAR + DRIVE BELT + DRIVE CHAIN
Unit: mm (in) Except ratio
CARBURETOR
ITEM STANDARD LIMIT
Reduction ratio Variable change (2.645 – 1.621) —
Reduction gear ratio 8.294 (47/17 × 47/15) —
Final reduction ratio 2.181 (24/11) —
Drive belt width 19.9
(0.78)
18.9
(0.74)
Movable driven face spring free length 105.0
(4.13)
99.8
(3.92)
Drive chain Type RK 530 —
Links 60 —
20-pitch length —
319.4
(12.57)
Drive chain slack 15 – 25
(0.6 – 1.0)
—
ITEM SPECIFICATION
Carburetor type MIKUNI VM16H
Bore size 16 mm
I.D.No. 08H0
Idle r/min 1 00 ± 100 r/min.
Float height 16 ± 1.0 mm
(0.6 ± 0.04 in)
Main jet (M.J.) #80
Jet needle (J.N.) 4LA43-1
Needle jet (N.J) E-1M
Pilot jet (P.J) #17.5
Air screw (A.S.) PRE-SET (1,
·
)
Throttle cable play 3 – 5 mm
(0.12 – 0.20 in)
8
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