(Vii) Troubleshooting; Engine Troubleshooting - Coleman CM04101 Manual

(VII) TROUBLESHOOTING

z Engine Troubleshooting
Problem Possible Cause
Loose spark plug
Insufficient
Loose cylinder head bolt
compression
Damaged gasket
No fuel
supplied to
combustion
chamber
Engine
won't start
Low Sufficient
compression
engine
Combustion
output
chamber
supplied with
Engine run
fuel
erratically
Improper grade of fuel used
Overloading
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Corrective
Action
Tighten plug
properly
Tighten bolt
properly
Replace gasket
Insufficient pulling
Pull rope sharply
speed for starting rope
Foreign matter in fuel
Clean tank
tank
Clean fuel line with
Clogged fuel line
dealer's advice
No fuel in tank Supply fuel
Fuel shutoff not open Open valve
Spark plug
dirty with Remove carbon or
carbon or wipe up spark plug
Improper wet with fuel
Damaged
spark
Replace spark plug
spark plug
Faulty
Consult dealer
magneto
Improper
adjustment
Consult dealer
of carburetor
Improper
Insufficient
spark
pulling speed
Pull rope sharply
for starting
rope
Check fuel
Check the working
condition
(VI) PERIODIC MAINTENANCE
z
SPARK PLUG (Once per month)
1.Remove the spark plug, see
Picture 17.
2.Remove carbon deposits, see Picture
18.
3.Check for discoloration.
Normally, the spark plug tip should be
tan in color.
4.Check spark plug gap. It should be set
between 0.028" and 0.031" or between
0.7 and 0.8mm.
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