Trouble Shooting; Difficult Starting Or Can’t Start - PGO PMX Sport 50 Service Manual

(5)Trouble shooting:

1.difficult starting or can't start:
Check and adjust
Loose carburetor draining
Screw, check if in side of
Carburetor have fuel or not
The fuel supply in carburetors
Is enough or smooth
Remove spark plug, insert
Spark plug cover, and touch
With engine check there is
Any spark
There is sparking
In spark plug
Measurement of
Compression pressure
Pressure is
normal
Start engine: follow the
Instruction of starting
engine
Engine has no
knocking
Remove spark plug
And check again
dry
Trouble condition
No fuel supply in
carburetor
No sparking or
Weak sparking
Insufficient or
No Pressure
Engine knocking
But can't start
wet
The reason
•check there is fuel or not
‚pipe between ful tank and
carburetor is blocked
ƒFloat is blocked
„Fuel gauge is blocked
...auto cock is malfunction
•spark plug out of order
‚dirty
ƒCDI unit out of order
„A.C. generator out of order
...ignition coil disconnect or
short circuit
†ignition coil disconnect or
short circuit
‡main switch out of order
ˆdefective magneto coil
•starting clutch out of order
‚piston ring stuck
ƒreed valve deteriorated
„cylinder, piston, piston
ring worn out
...cylinder gasket leakage
†
cylinder body has sand hole
•bad action of auto choke
‚air trapped in intake manifold
ƒwrong ignition timing
„bad adjustment of carburetor's
fuel adjusting screw
•carburetor fuel level too high
‚malfunction of auto choke
ƒthrottle valve open too largely