Visually check the drive chain for the possible defects listed below. (Support the motorcycle by a jack and a wooden block, turn the rear wheel slowly by hand with the transmission shifted to Neutral.)
- Loose pins
- Damaged rollers
- Dry or rusted links
- Kinked or binding links
- Excessive wear
- Improper chain adjustment
- Missing О-ring seals
If any defects are found, the drive chain must be replaced.
Note: When replacing the drive chain, replace the drive chain and sprockets as a set.
Checking
- Remove the axle cotter pin. (For E-03, 28 and 33 models)
- Loosen the axle nut (1).
- Loosen the chain adjuster locknuts (2).
- Tense the drive chain fully by turning both chain adjusters (3).
- Count out 21 pins (20 pitches) on the chain and measure the distance between the two points. If the distance exceeds the service limit, the chain must be replaced.
Drive chain 20-pitch length
Service Limit: 319.4 mm (12.6 in)
Adjusting
- Loosen or tighten both chain adjusters (1) until the chain has 20 - 30 mm (0.8 - 1.2 in) of slack in the middle between engine and rear sprockets. The ends of left and right spacers must be at the same position on the scales (А) to ensure that the front and rear wheels are correctly aligned.
- Place the motorcycle on its side-stand for accurate adjustment.
- After adjusting the drive chain, tighten the axle nut (2) to the specified torque.
- Recheck the drive chain slack after tightening the axle nut (1).
- Tighten both chain adjuster locknuts (3) securely.
Rear axle nut: 100 N·m (10.0 kgf·m, 72.5 lb·ft)
Cleaning and lubricating
- Wash the chain with kerosene. If the chain tends to rust quickly, the intervals must be shortened.
Caution: Do not use trichlene, gasoline or any similar fluids: These fluids have too great a dissolving power for this chain and, what is more important, they can damage the O-rings (or seals) confining the grease in the bush to pin clearance. Remember, high durability comes from the presence of grease in that clearance.
- After washing and drying the chain, oil it with a heavy-weight motor oil.
Caution:
- Do not use any oil sold commercially as "drive chain oil". Such oil can damage the O-rings (or seals).
- The standard drive chain is RK525SMOZ7. SUZUKI recommends that this standard drive chain should be used for the replacement.