Massimo MSU 1100 - Page 93

85
⑤ Magneto problem Change
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 Air filter is dirty.
⑧ Block in fuel pipe cause fuel
supply problem
⑨ Fuel pipe problem
⑩ Underpressure in hight-pressure
fuel pump
Change
Change
Clean or Change
Adjust or change
Adjust or change
Change
Clean or change
Clean
Change
Adjust or change
Exhaust blue
smoke
Mechanical fault
① too many lube
② Piston ring worn out
③ Valv e p i p e worn ou t
④ Cylinder wall scratched
⑤ Valve rod worn out
⑥ Seal of valve rod broken
Drain the extra lube
Change
Change
Change
Change
Change
1. Fuel supply
system fault
① Blocked in muzzle of throttle
body
② Air filter is dirty
③ Leakage on air intake pipe
Clean or change
Clean or change
Tighten or change
Drain the extra lube