ENGINE PRODUCES MECHANICAL KNOCKING SOUND
Remedies
Inspect and tighten flwheel nut to correct torque
See
“ENG!NE
PRE-IGNITES’ table
Inspect and repair and tighten-nuts to correct torque
Tighten bolts
Inspect and tighten blade bolt to correct torque
ENGINE SMOKES EXCESSIVELY
ENGINE STALLS
Remedies
Refill with fresh fuel-of the correct mixture
Unload engine and-restart
See “SPARK PLUG FOULED- table
Replace fuel cap
Inspect and repair to remove unwanted ground
Clear vent of obstruction
Clear debris from fins or cause of overheating
Refill-with fresh, and
properly
mixed, fuel
3-6
Reference Section
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