PERIODIC MAINTENANCE 2-21 • Count out 21 pins (20 pitches) on the chain and measure the distance between the two points. If the distance exceeds the 1 2 3 192021 service limit, the chain must be replaced. Drive chain 20-pitch length: Service limit: 319.4 mm (12.57 in) ADJUSTING • Loosen or tighten both chain adjuster bolts 1 until there is 20 – 30 mm (0.8 – 1.2 in) of slack at the middle of the chain between the engine and rear sprockets as shown. The chain adjuster position relative to the reference marks A on both sides of the swingarm must be equal to ensure that the front and rear wheels are correctly aligned. 20 – 30 mm Drive chain slack: (0.8 – 1.2 in) Standard: 20 – 30 mm (0.8 – 1.2 in) • Place the motorcycle on its side-stand for accurate adjust- E ment. L • After adjusting the drive chain, tighten the axle nut 2 to the specified torque. P • Tighten both chain adjuster lock-nuts 3 securely. Rear axle nut: 100 N·m (10.0 kgf-m, 72.5 lb-ft) M • Install a new cotter pin. (For E-03, 28, 33) A • Recheck the drive chain slack after tightening the axle nut. S