Weak Acceleration - PGO PMX Sport 50 Service Manual

2.Weak acceleration:

Check and Adjust
Start engine and open throttle
Gradually, check and inspect
Engine can rotate up
Check ignition timing, (check
With ignition timing lamp)
Timing is correct
Check cylinder
Compression pressure
(use cylinder compression
pressure gauge)
Pressure is normal
Check carburetor
Is blocked or not
Remove spark plug and Check it
No dirty and no color change
No blocked
Trouble condition
Engine can't rotate
Up completely
Timing is not correct
Pressure is
Not normal
blocked
Dirty, color change
The reason
•air cleaner blocked
‚fuel supply system abnormal
ƒfuel tank cover blocked
„ muffler blocked
...auto chock is malfunctioned
†auto chock is malfunctioned
•CDI unit is out of order
‚alternator flywheel magneto
out of order
•cylinder, piston ring worn out
‚cylinder gasket leakage
ƒcylinder body has sand hole
„ Reed valve malfunction
Clean the carburetor
•clean the dirt
‚specification is not correct