Yamaha YZ125N1 Motorcycle User Manual


 
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SPEC
MAINTENANCE SPECIFICATIONS
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 × 1.85/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 111 links+joint
Chain slack 40~50 mm (1.6~2.0 in)
Chain length (10 links) 152.5 mm (6.004 in)
Front disc brake:
Disc outside dia. × Thickness 250 × 3.0 mm (9.84 × 0.12 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 240 × 4.0 mm (9.45 × 0.16 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. 12.7 mm (0.500 in)
Caliper cylinder insdie dia. 27.0 mm (1.063 in)
Brake fluid type DOT #4
Brake lever & brake pedal:
Brake lever position 95 mm (3.74 in)
Brake pedal height 5 mm (0.20 in)
(vertical height above footrest top)
Clutch lever free play (at lever pivot) 2~4 mm (0.08~0.16 in)
Throttle grip free play 3~5 mm (0.12~0.20 in)
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