Small Engine Backfires:

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. LEAKING, WORN VALVES

. BAD FUSE IN CONTROL BOX

. BAD SAFETY SWITCHES

. BAD KEYSWITCH

. KILL SWITCH CONTACTING INTERMITTENTLY

. DIRTY CARBURETOR

. IMPROPERLY SET THROTTLE OR CHOKE

. FUEL SOLENOID SHORTING

. FUEL MIXTURE TOO RICH OR TOO LEAN

. RUNNING OUT OF FUEL

. WATER CONTANIMATED FUEL

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