Yamaha YZ250(W)/W1, Owner'S Service Manual

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MAINTENANCE SPECIFICATIONS
SPEC
Item Standard Limit
Wheel:
Front wheel type Spoke wheel
…
Rear wheel type Spoke wheel
…
Front rim size/Material 21
×
1.60/Aluminum
…
Rear rim size/Material 19
×
2.15/Aluminum
…
Rim runout limit:
Radial
…
2.0 mm (0.08 in)
Lateral
…
2.0 mm (0.08 in)
Drive chain
Type/Manufacturer DID520DMA2 SDH/DAIDO
…
Number of links 113 links + joint
…
Chain slack 48~58 mm (1.9~2.3 in)
…
Chain length (15 links)
…
242.9 mm (9.563 in)
Front disc brake:
Disc outside dia.
×
Thickness 250
×
3.0 mm 250
×
2.5 mm
(9.84
×
0.12 in) (9.84
×
0.10 in)
Pad thickness 4.4 mm (0.17 in) 1.0 mm (0.04 in)
Master cylinder inside dia. 11.0 mm (0.433 in)
…
Caliper cylinder inside dia. 27.0 mm (1.063 in)
×
2
…
Brake fluid type DOT #4
…
Rear disc brake:
Disc outside dia.
×
Thickness 245
×
4.0 mm 245
×
3.5 mm
(9.65
×
0.16 in) (9.65
×
0.14 in)
Deflection limit
…
0.15 mm (0.006 in)
Pad thickness 6.4 mm (0.25 in) 1.0 mm (0.04 in)
Master cylinder inside dia. 11.0 mm (0.433 in)
…
Caliper cylinder insdie dia. 25.4 mm (1.000 in)
…
Brake fluid type DOT #4
…
Brake lever & brake pedal:
Brake lever position 95 mm (3.74 in)
…
Brake pedal height Zero mm (Zero in)
…
(vertical height above footrest top)
Clutch lever free play (lever end)
8~13 mm (0.31~0.51 in)
…
Throttle grip free play 3~5 mm (0.12~0.20 in)
…
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