Jianshe JS125-6B, Maintenance Manual

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72
ENGINE
4. Check
Timing chain tensioner free play
Timing chain, sprocket, chain guide
plate and chain tensioner
1. Check
Timing chain
Hardening or crack Replace timing chain and
sprocket completely
2. Check
Sprocket
Hardening or crack Replace timing chain and
sprocket completely
Quarter gear
Correct combination
Rotor
Sprocket
3. Check
Chain guide plate (exhaust side)
Chain guide plate (intake side)
Wear or damage Replace
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Checking steps
Press the tensioner rod lightly with a finger, and turn
the tensioner rod to the end with a small screw driver.
When press and loosen the screw driver, should
make sure that the tensioner can go out smoothly.
If not, the tensioner assy must be replaced.
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