Yamaha YW50AP, Service Manual, Page: 28 / 214

SPEC
2-7
MAINTENANCE SPECIFICATION
CHASSIS
Item
Steering system:
Steering bearing type
No /size of steel balls:
Upper
Lower
Front suspension:
Front fork travel
Fork spring free length
Fork length (Installed)
Spring rate(K1)
(K2)
Inner tube vend limit
Rear suspension:
Shock absorber stroke
Shock absorber free length (Installed)
Spring free length (Installed)
Spring rate(K1)
Front wheel:
Type
Rim size
Rim material
Rim runout limit
radial
lateral
Rear wheel:
Type
Rim size
Rim material
Rim runout limit
radial
lateral
Front disc brake:
Type
Disc outside diameter
×
thickness
Pad thickness
Master cylinder inside diameter
Caliper cylinder outside diameter
Brake fluid type
Rear drum brake:
Type
Drum inside diameter
Shoe thickness
Brake lever:
Brake lever free play (front at lever side)
Brake lever free play (rear)
Throttle cable free play
Standard
Ball and race bearing
22 pcs
19 pcs
70 mm(2.8 in)
236.6 mm(9.31 in)
212.1 mm(8.35 in)
15.68 Nm/mm(1.6 kg/mm,90lb/in)
23.5 Nm/mm(2.43 kg/mm,136lb/in)
...
55 mm(2.2 in)
281.8 mm(11.1 in)
159.8 mm(6.29 in)
71.15 N/mm(7.26 kg/mm,407lb/in)
Cast wheel
MT3.50
×
10
Aluminum
...
...
Cast wheel
MT3.50
×
10
Aluminum
...
...
Single
180
×
4.0mm
(7.1
×
0.16 in)
6 mm(0.24 in)
11 mm(0.4 in)
34.93 mm(1.38 in)
DOT #4(or DOT #3)
Leading, trailing
130 mm(5.12 in)
4 mm(0.16 in)
2~5 mm(0.08~0.20 in)
10~20 mm(0.39~0.79 in)
3~5 mm(0.12~0.20 in)
Limit
...
...
...
...
233.6 mm
...
...
0.2 mm
(0.008 in)
...
...
...
...
...
...
...
...
1 mm(0.04 in)
1 mm(0.04 in)
...
...
...
1 mm(0.04 in)
1 mm(0.04 in)
...
180
×
3.5 mm
(7.1
×
0.14in)
0.8 mm(0.03 in)
...
...
...
...
131 mm(5.16 in)
2 mm(0.08 in)
...
...
...