User`s manual

UTV500CC User’s Manual www.UTVsFactory.com
29
Engine
middle and
high rotate
speed is
uneven
Mechanical problem
① The force of Valve spring is
weak.
② Cam axle worn out
③ Plug is dirty.
④ Gap of plug is too small.
⑤ Air circulation is not right.
⑥ Ignition loop problem
⑦ Floater of carburetor is too
lower.
⑧ Air filter is dirty.
⑨ Block in fuel pipe cause
fuel supply problem
⑩ Fuel pipe problem
Change
Change
Clean or Change
Adjust or change
Adjust or change
Change
Adjust the height of
floater
Clean or change
Clean
Change
Exhaust blue
smoke
Mechanical fault
① too many lube
② Piston ring worn out
③ Valve pipe worn out
④ Cylinder wall scratched
⑤ Valve rod worn out
⑥ Seal of valve rod broken
Drain the extra lube
Change
Change
Change
Change
Change