Table 3-3. Unit Troubleshooting - Continued
TEST OR INSPECTION
ENGINE WILL NOT START - Continued.
Check for loose spark plug lead.
Press spark plug cap firmly onto spark plug.
Inspect engine choke for proper positioning.
Place engine choke into closed position.
Check spark plug for fouling or improper gap setting.
Remove spark plug and examine it for carbon build-up or gasoline contamination. Clean plug if it is fouled.
Inspect spark plug for proper gap. Regap to .030 in. (0.750 mm).
Inspect manual starter on engine for proper operation.
If engine flywheel does not rotate when attempting to start, replace starter clutch (see paragraph 3-25).
If engine starter still fails to function, replace entire starter assembly (see paragraph 3-25).
Inspect engine ignition system for poorly adjusted or damaged components.
Refer to paragraph 3-26 for engine ignition system disassembly and inspection.
Step 10. Check engine air cleaner for clogging.
Step 11. Check engine carburetor for poor adjustment or damage.
If carburetor is damaged, refer to paragraph 3-21 for carburetor repair.
Step 12. Check for malfunctioning engine fuel pump.
Disconnect output side of engine fuel pump and pull out starter rope. If fuel does not exit output side of fuel