- 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 length limit 239.3 mm (9.42 in).
- 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.
Notice:
- 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/cracks → Replace the drive chain.
5. Lubricate:
- Drive chain
Recommended lubricant. Chain lubricant suitable for ring chains.