- Measure the dimension between 15-links on the inner side «a» and outer side «b» of the roller and calculate the dimension between pin centers.
- Dimension «c» between pin centers = (Inner dimension «a» + Outer dimension «b»)/2
- 15-link section «c» of the drive chain
Out of specification → Replace the drive chain, front drive sprocket and rear drive sprocket as a set.
15-link drive chain section limit (maximum): 239.3 mm (9.42 in).
Notes:
- While measuring the 15-link section, push down on the drive chain to increase its tension.
- Perform this measurement at two or three different places.
2. Check:
- Drive chain Stiffness → Clean and lubricate or replace.
3. Clean:
- Drive chain
a. Wipe the drive chain with a clean cloth.
b. Put the drive chain in kerosene and remove any remaining dirt.
c. Remove the drive chain from the kerosene and completely dry it.
Cautions!
- This vehicle has a drive chain with small rubber O-rings «1» between the drive chain side plates. Never use high-pressure water or air, steam, gasoline, certain solvents (e.g., benzine), or a coarse brush to clean the drive chain. High-pressure methods could force dirt or water into the drive chain’s internals, and solvents will deteriorate the O-rings. A coarse brush can also damage the O-rings. Therefore, use only kerosene to clean the drive chain.
- Do not soak the drive chain in kerosene for more than ten minutes, otherwise the O-rings can be damaged.
4. Check:
- O-rings «1». Damage → Replace the drive chain.
- Drive chain rollers «2». Damage/wear → Replace the drive chain.
- Drive chain side plates «3». Damage/wear → Replace the drive chain.
Cracks → Replace the drive chain and make sure the battery breather hose is properly routed away from the drive chain and below the swingarm.
5. Lubricate:
- Drive chain
Recommended lubricant: Engine oil or chain lubricant suitable for O-ring chains.