6-36
WARNING
Many troubleshooting procedures present hazards that can result in severe personal inju-
ry or death. Only qualified service personnel with knowledge of fuels, electricity, and machinery haz-
ards should perform service procedures. Review safety precautions on page iii.
TABLE 6-19. TROUBLESHOOTING ENGINE PRIMARY SYSTEMS
Trouble Possible Cause Corrective Action Section/
Page
Engine Shuts 1. Low oil level. 1. Add oil as required.
Down and Will
Not Restart 2. Low oil level switch is defective 2. Check low oil level switch.
(Spec A-F, if applicable).
(Also see 3. Worn spark plug. 3. Clean or replace spark plug.
Control
Trouble- 4. Faulty fuel system - flooded. 4. Refer to
Gasoline Fuel System.
8-11
shooting
table 6-4) 5. Choke not opening. 5. Check choke operation. 8-17
6. Faulty ignition system. 6. Check for spark. 8-6
Engine Runs 1. Fouled spark plug. 1. Clean or replace spark plug.
On After 2. Engine carbon build-up. 2. Remove carbon from engine.
Shutdown
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