Puxing PX1200BG - Page 7

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2. Power decline, causes and Solutions.
phenomenon
causes
solutions
the speed
slowed, and
in severe
decline or
extinction
speed
When rise
the
Throttle
Gas supply
system
Intake system jet
Cleaning, blowing through or
change the new parts
Combustion chamber
have carbon deposit
Remove the carbon deposit
Muffler or exhaust dirt
Remove the dirt
Air filter jet
Clean the air filter
Inlet is leaking
Repair or change
Abnormal
compression
ratio
Piston, Cylinder, piston
ring attrition
Change the damage part
Cylinder block, cylinder
head joint surface leakage
Change cylinder gasket
Valve lash too big or
small
Readjust
The valve not sealed
repair
3. Engine abnormal running, causes and Solutions.
phenomenon
cause
solutions
Percussion noise from
engine
Piston, cylinder, piston ring
excessive wear
Change the damage parts
Piston pin and pin hole wear
Change the piston pin and pin hole
Connecting rod hole excessive
wear
Change the Connecting rod
Bearing which connected with
Crankshaft broken
Change the bearing
deflagration
Engine excessive heat
Find possible cause
Cylinder have carbon deposit
Clean the carbon deposit
Unqualified gas
Change with qualify gas
Engine missing
Spark plug electrode gap
improper
Adjust the electrode gap
Faulty Magneto
Check and change the broken parts