SECTION 4. DISASSEMBLY AND SERVICE
(ADD CLEAN FRESH FUEL OF DESIGNATED
QUALITY INTO TANK)
4-1-2 Low Power
(SEE 4-4-1)
(WASH)
(SEE 4-5-2)
(SEE 4-5-4)
(SEE 4-4-4)
(MOVE TO “RUN” POSITION)
(SEE 3-3)
(SEE 4-4-3)
(SEE 3-6)
(SEE 4-4-1)
(SEE 3-7)
(WASH)
(SEE 4-4-2)
(SEE 3-4)
LOW
POWER
FUEL SYSTEM
IGNITION
SYSTEM
COMPRESSION
SYSTEM
CARBURETOR out of adjustment
FUEL FILTER clogged
CHOKE LEVER not fully open
AIR FILTER dirty
SPARK PLUG faulty
IGNITION COIL faulty
CYLINDER / PISTON / PISTON RING worn
VALVE CLEARANCE out of Spec
COOLING FAN dirty
VALVE SEAT worn or damaged
COOLING CYLINDER COOLING FINS dirty
MUFFLER clogged
MOTOR open phase, MOTOR WINDING
turn-to-turn short circuit
OTHER
FUEL QUALITY poor
(REMOVE EXTRA LOADS)
ELECTRICAL LOADS too high
CAMSHAFT worn
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