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 TM 55-1905-219-14-8
4-5. GENERAL (Continued).
Table 4-1. Portable Fire Pump (P-250) Ignition Troubleshooting.
NOTE
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Spark plug problems.
Step 1.
Loose in cylinder head.
Refer to paragraph 4-7.5.
Step 2.
Loose connection.
Refer to paragraph 4-7.5.
Step 3.
Spark gap not properly adjusted.
Refer to paragraph 4-7.5.
Step 4.
Fouled.
Refer to paragraph 4-7.5.
Step 5.
Burned out.
Refer to paragraph 4-7.5.
Step 6.
Faulty gasket.
Refer to paragraph 4-7.5.
2. Breaker points - magneto.
Step 1.
Improperly adjusted.
Refer to paragraph 4-7.5.
Step 2.
Pitted or corroded.
Refer to paragraph 4-7.5.
4-9
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