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ENGINE PROBLEMS
Observe Safety Guidelines detailed in the beginning of this manual.
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENT(S)
RECOMMENDED
COURSE OF ACTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely,
contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed.
Call 1-888-935-3877.
CAUTION
Engine will not stop running.
1. The piercing stop switch may not
be contacting the spark plug.
Make certain that the pointed
end of the lever firmly contacts
the spark plug tip.
1. Be sure the piercing stop switch
is securely mounted to the
engine.
Engine runs erratically or stops run-
ning.
1. Check the spark plug boot and
wire for loose or faulty connec-
tion.
2. The spark plug may be faulty.
Replace.
3. The fuel and air mixture may be
out of adjustment. Consult
Robin/Subaru owner’s man ual.
4. The fuel supply may be con -
taminated with water.
1. The engine may require service
to the head or carburetor.
2. The fuel pump may be faulty.
Consult Robin/Subaru.
Engine sputters but will not start. 1. The spark plug may be faulty.
2. The fuel supply may be contami-
nated with water.
3. The air filter may be clogged.
Replace.
4. The fuel and air mixture may be
out of adjustment.
Consult Robin/Subaru owner’s
manual.
TROUBLESHOOTING AND REPAIR
F-10 F-10
BULLDOG® 140
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