2007 Yamaha Apex Factory Service Manual, Page 379Get this manual

2007 Yamaha Apex Factory Service Manual, Page 379

MAINTENANCE SPECIFICATIONS Model Valve spring: Free length Intake Exhaust Installed length (valve closed) Intake Exhaust
Piston pin bore inside diameter RXW10J, RXW10SJ 38.90 mm (1.53 in) 40.67 mm (1.60 in) 34.50 mm (1.36 in) 35.00 mm (1.38 in)
82 96 (8.2 9.6 kg, 18.1 21.2 lb) 110 126 (11.0 12.6 kg, 24.3 27.8 lb) 2.5_1.7 mm (0.067 in) 2.5_1.8 mm (0.071 in) Clockwise
Clockwise 19.982 19.988 mm (0.7867 0.7869 in) 19.957 mm (0.7857 in) 19.488 22.482 mm (0.7672 0.8851 in) 19.463 mm (0.7663
in) 20.000 20.018 mm (0.7874 0.7881 in) 20.048 mm (0.7893 in) 22.500 22.518 mm (0.8853 0.8865 in) 22.548 mm (0.8877 in) 73.955