The capability of driving is bad and consuption is too high Atmolysis chain
–Fuel system is blocked •Atmolysis chain noise
–Ignition system is wrong –Atmolysis chain tensioner is loose or damaged
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•Cylinder/Piston –Tensioner head is damaged
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–Cylinder pressure is low or not stable –Atmolysis chain guiding board is damaged
–Cylinder or piston ring is abraded
Smoke is too much Chain is too loose
–Cylinder, piston or piston circle is abraded –Tensioner is damaged
–Piston circle is installed incorrectly –Atmolysis chain becomes longer
–Piston or cylinder wall is scratched
Too hot
–There is carbon deposistion in piston or combustion chamber •
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•CRANKSHAFT/KICKING STARTER
Noise is too much
CLASH OR ABNORMAL NOISE –Transmission bearing is abraded
–Piston or cylinder is abraded –Crrankshaft big end or crankshaft pin is abraded
–Carbon deposit
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•CLUTCH/SHIFT GEARS Engine librates
CLUTCH –Crank moves too much
It is difficult for scooter to slide at idle speed
–Clutch is not adjusted correctly
–Clutch brake pad kit is distorted Kicking starter/Skid
–Clutch locknut is too loose –The mark for Kicking starter gears/Transition
gears is wrong
–Clutch acentric mass spring is not stable –Kicking starter spring is not stable
–Start timing is not correct
–Kicking starter/Transition gear is abraded or damaged
–Transition gears are clipped on shaft for sliding axiall
Clutch skids at speedup
–Clutch is not adjusted correctly
–Clutch brake pad kit is abraded
–Clutch acentric mass spring is wrong
- Clutch acentric disc is abraded
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• Front wheel/Drum brake/Shock
absorber/Driving
Front wheel swings
–Rim or wheel axes is bended and distorted
–Axes bearing is abraded
It is difficult to shift gears –Spoke looses or bends
–Driver wheel disc acentric rolling pole is abraded –Something is wrong with tire
–Driven wheel disc compression spring is damaged –Wheel inclines too much