Yamaha YJ50RAP Service Manual page 26

Item
Crankshaft
C
A
Width A
Max. runout C
Big end side clearance D
Big end radial clearance E
Small end free play F
Clutch
Clutch type
Clutch shoe
Thickness
Clutch shoe spring
Free length
Kickstarter
Kickstarter type
Kickstarter pinion gear clip force
Transmission
Transmission type
Primary reduction system
Primary reduction ratio
Secondary reduction system
Secondary reduction ratio
Operation
Single speed automatic
Air filter type
ENGINE SPECIFICATIONS
F
C
E
D
37.90 ~ 37.95 mm (1.492 ~ 1.494 in)
----
0.35 ~ 0.75 mm (0.0138 ~ 0.0295 in)
0.004 ~ 0.017 mm (0.00016 ~ 0.00067 in)
0.4 ~ 0.8 mm (0.02 ~ 0.03 in)
Dry, centrifugal automatic
4.0 mm (0.157 in)
29.9 mm (1.18 in)
Ratchet
0.15 ~ 0.25 kg (0.34 ~ 0.56 lb)
V-belt automatic
Helical
48/13 (3.692)
Spur gear
42/13 (3.231)
Centrifugal automatic type
2.183 ~ 1.050:1
Wet element
Standard
2 - 4
SPEC
Limit
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0.03 mm
(0.0012 in)
1.0 mm
(0.0394 in)
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1.0 mm
(0.039 in)
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