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 TM 5-2805-261-13
Table 3-1. Troubleshooting - continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. MOTOR WILL NOT START - continued.
Step 10. Engine flooded.
a. Push choke knob all the way in.
b. Disconnect fuel line connector at motor.
c. Crank motor until it is cleared.
Step 11. Check for water in fuel system.
Replace fuel. (See Fuel Mixing instructions, para 3-3.)
Step 12. Fuel pump filter or auxiliary fuel filter is clogged.
Clean filter (para 3-15, 3-16).
Step 13. Check for loose spark plug leads.
a. Tighten.
b. Replace (para 3-10).
Step 14. Spark plugs carboned, burned, or wet.
Replace or dry (para 3-10).
Step 15. Check for loose spark plugs.
Tighten (para 3-10).
Step 16. Spark plug gap is incorrect.
Regap (para 3-11).
2. MOTOR WILL NOT IDLE PROPERLY.
Step 1. Check for improper fuel mixture.
Dump fuel tank and replace fuel. (See Fuel Mixing Instructions para 3-3.)
Step 2. Carburetor adjustment is improperly set.
Adjust. (See para 3-17.)
Step 3. Defective spark plugs.
Replace (para 3-10).
3. MOTOR LOSES POWER.
Step 1. Check for obstruction at cooling water inlet.
Remove obstruction.
3-5
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