Yamaha 2002 CS50, Service Manual, Page: 20 / 204

SPEC
MAINTENANCE SPECIFICATIONS
2-5
CHASSIS
Model CS50 CS50Z
Steering system:
Steering bearing type Upper Ball bearing
Lower Ball bearing
Front suspension:
Front fork travel 70 mm
Fork spring free length 224 mm
Spring rate (K
1
) 1,33 Kgf/mm
(K
2
) 2,0 Kgf/mm
Oil capacity 45 cc ± 1
Oil grade Fork oil: 10W or equivalent
Rear suspension:
Shock absorber stroke 60 mm
Spring free length 220 mm
Spring rate (K
1
) 4,58 Kgf/mm
(K
2
) 6,12 Kgf/mm
Wheels:
Type of front wheel Alloy rim
Type of rear wheel Alloy rim
Size/material of front tyre 2,75 x 12 / aluminium
Size/material of rear tyre 3,00 x 12 / aluminium
Rim runout limit
Radial 1,0 mm
Lateral 1,0 mm
Front disc brake:
Type Single
Disc outside diameter x thickness ø 190 x 3,5 mm
Pad thickness 4,5 mm
<Limit> <0,5 mm>
Interior diameter of pump 11 mm
Calliper interior diameter 30 mm
Brake fluid type DOT #4
Rear drum brake:
Type Single cam
Drum inside diameter ø 110 mm
<Limit> <ø 110,5 mm>
Shoe thickness 4 mm
<Limit> <2 mm>
Brake levers:
Free play of the front brake lever
(right)/measurement 2 ~ 5 mm / At the end of the lever
Free play of the rear brake lever
(left)/measurement 5 ~ 10 mm / At the end of the lever