um CHILL 125 cc. Service Manual page 21

Continued
Fault system
The cylinder pressure is too
The engine shows big noise.
Air distribution system The cylinder pressure is too
The silencer gives blue
smoke.
The cylinder head leaks.
The front wheel deviates.
Wheels system
The front wheel swings.
CHILL 125 cc. SERVICE MANUAL AND EFI DIAGNOSTIC
Fault
There is too much carbon buildup in the combustion
high. chamber and on the top of the piston.
The adjustment of the valve lash is improper.
The air valve spring breaks off.
The cylinder and piston wear out.
The cylinder, piston and piston ring seriously wear out.
low.
The piston ring wears out.
The piston ring is improperly mounted.
There is scratch or wear on the piston or cylinder wall.
The air valve stem or air valve guide pipe wears out.
The front shock absorber deforms.
The front wheel shafts bends.
The front wheel deforms.
The front wheel is improperly mounted.
The front wheel bearings are worn out or damaged.
The front aluminum wheel deforms.
The nut of the front wheel shaft is loose.
The tire pressure is too low.
The front wheel shaft is loose.
Causes
Clean the carbon buildup in the combustion chamber and
on the top of the piston.
Readjust the valve lash
Replace the air valve spring.
Replace the cylinder and piston.
Replace the cylinder, piston and piston ring.
Replace the piston ring.
Remount the piston ring.
Replace the piston or cylinder.
Replace the air valve stem and air valve guide pipe.
Replace the front shock absorber
Rectify the front wheel shaft.
Rectify the front wheel and replace the front wheel
Remount it
Replace the front wheel bearings.
Replace the front aluminum wheel.
Tighten the nut of the front wheel shaft.
Increase the tire pressure.
Tighten the nut of the front wheel shaft.
Troubleshooting
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