10
Description Routine
Power is not strong, not speed up
● Damage of cylinder, piston rings
● cylinder head gasket works not well
● Valve is damaged
● Mixing air time not good
●EEV of carburetor not work
● Valve socket not good
●Air leakage of minus pressure tube
●Ignition time not good
●Vent bolt of carburetion not work
● 化油器过满溢出
OK No or not enough
Start accordin
ri
ht method
No explosion No start with explosion
Take off spark plug again
火花塞是干的 火花塞湿
●Too many oil in carburetor
●EEV of carburetor not work
●Value of throttle is unusual.
Dry Wet
◆
Reasons
Check Ignition
time [Ignition led]
● Battery connection badness
● Air filter jammed
● Vent hole of oil tank cover jammed
● CDI parts not work
● Trigger not work
Yes No
● Valve gap not good
● Shape of valve changed
Yes No
Check Valve Gap
Check Compress pressure Value in Plunger
Yes
●
● oil tube jammed
● minus Pressure line not connected well
● Carburetor jammed
No
Let engine work
at high speed
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