Yamaha 2008 YW50X Service Manual page 19

Crankshaft
Width "A"
Maximum runout "C"
Big end side clearance "D"
Big end radial clearance
Small end free play "F"
Clutch
Clutch type
Clutch shoe thickness
Clutch shoe spring free length
Clutch housing inside diameter
Compression spring free length
Weight outside diameter
Clutch - in revolution
Clutch - stall revolution
V-belt
V-belt width
Kickstarter
Type
Kick clip tension
Transmission
Transmission type
Primary reduction system
Primary reduction ratio
Secondary reduction system
Secondary reduction ratio
Single speed automatic
Maximum main axle runout
Maximum drive axle runout
ENGINE SPECIFICATIONS
Item
Standard
37.90 ~ 37.95mm
(1.4921 ~ 1.4941in)
...
0.20 ~ 0.50mm
(0.0079 ~ 0.0197in)
0.004 ~ 0.017mm
(0.0002 ~ 0.0007in)
0.40 ~ 0.80mm
(0.0157 ~ 0.0315in)
Automatic centrifugal
2.5mm (0.10in)
26.2mm (1.03in)
105mm (4.13in)
65.1mm (2.56in)
15.0mm (0.59in)
2800 ~ 3200r/min
4500 ~ 5500r/min
16.5mm (0.65in)
Ratchet
0.7 ~ 2N (0.07 ~ 0.2kgf)
(0.15 ~ 0.44lb)
V-belt automatic
Helical gear
52/13 (4.000)
Super gear
43/13(3.307)
2.693 ~ 0.889:1
...
...
2-4
SPEC
Limit
...
0.03mm
(0.0012in)
1.00mm
(0.0394in)
...
...
...
1.0mm
(0.04in)
...
105.5mm
(4.15in)
61.8mm
(2.43in)
14.5mm
(0.57in)
...
...
14.8mm
(0.58in)
...
...
...
...
...
...
...
...
0.02mm
(0.0008in)
0.02mm
(0.0008in)