Inspecting The Drive Chain; Chain Sprocket - Derbi GPR 125 Racing Workshop Manual

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NSPECTING THE DRIVE CHAIN NSPECTING THE DRIVE CHAIN
1. Inspect:
- Chain stiffness
Stiffness => Clean and lubricate, or replace.
2. Inspect:
- Drive chain (1).

- Chain sprocket (2).

More than ½ tooth of wear => Replace the whole chain.
3. Clean:
- Drive chain
Place the chain in a container with petrol and brush it to re-
move as much of the dirt as possible. Then remove the chain
from the petrol, dry and lubricate it.
Lubricant for the drive chain:
Engine oil
C C
HAIN SPROCKET HAIN SPROCKET
1. Fit:
- Chain sprocket.
- Nut.
Chain sprocket nuts:
25 – 29 N.m (2,5 – 2,9 kgf.m)
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