TM 3-4230-218-12&P
Table
MALFUNCTION
3-1.
Operator Troubleshooting - Continued
TEST OR INSPECTION
CORRECTIVE ACTION
2.
ENGINE RUNS ROUGHLY OR STOPS - Continued.
Step
Step
Step
Step
Step
2.
Check for loose spark plug lead.
If spark plug lead is loose, reattach lead to spark plug.
If spark plug lead is tight, proceed to step 3.
3.
Check
If choke is
If choke is
4.
Check
that choke is open.
closed, open choke.
open, proceed to step 4.
that fuel is flowing from fuel can into carburetor and
inspect for leaking hose.
If fuel is not flowing into carburetor, squeeze ball pump to break
vapor lock.
If hose leaks, notify organizational maintenance to replace defective
hose.
If fuel is flowing into carburetor and hose does not leak, proceed to
step 5.
5.
Check for loose fuel line fittings.
Check that all fittings, including ball pump, are tight to prevent air
from entering engine fuel lines.
If fuel lines are cut or damaged notify
replacement.
If fuel lines are acceptable, proceed to
6.
Check for clogged air filter.
organizational
step 6.
maintenance for
If air filter is clogged, notify organizational maintenance.
If air filter is not clogged, proceed to step 7.
Step 7.
Check for contaminated fuel and fuel filter. Water contamina-
tion will make the filter appear cloudy.
If fuel is contaminated, remove existing fuel can and install new fuel
can with uncontaminated fuel.
3-4
