Yamaha VINO YJ50RAP, Service Manual

Page: 26 / 228

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