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INCORRECT ENGINE IDLING SPEED/POOR MEDIUM AND-
HIGH-SPEED PERFORMANCE/FAULTY GEAR SHIFTING
TRBL
SHTG
EAS00846
INCORRECT ENGINE IDLING SPEED
ENGINE
Cylinders and cylinder head
SIncorrect valve clearance
SDamaged valve train components
Air filter
SClogged air filter element
FUEL SYSTEM
Carburetors
SFaulty starter plunger
SLoose or clogged pilot jet
SLoose or clogged pilot air jet
SDamaged or loose carburetor joint
SIncorrectly synchronized carburetors
SIncorrectly adjusted engine idling speed
(throttle stop screw)
SIncorrect throttle cable free play
SFlooded carburetor
ELECTRICAL SYSTEMS
Battery
SFaulty battery
SDischarged battery
Spark plugs
SIncorrect spark plug gap
SIncorrect spark plug heat range
SFouled spark plug
SWorn or damaged electrode
SWorn or damaged insulator
SFaulty spark plug cap
Ignition coils
SBroken or shorted primary or secondary coils
SFaulty spark plug lead
SDamaged ignition coil
Ignition system
SFaulty ignition unit
SFaulty pickup coil
EAS00848
POOR MEDIUM-AND-HIGH-SPEED PERFORMANCE
Refer to “STARTING PROBLEMS”.
ENGINE
Air filter
SClogged air filter element
FUEL SYSTEM
Carburetors
SFaulty diaphragm
SIncorrect fuel level
SLoose or clogged main jet
EAS00850
FAULTY GEAR SHIFTING
SHIFTING IS DIFFICULT
Refer to “CLUTCH DRAGS”.
SHIFT PEDAL DOES NOT MOVE
Shift shaft
SIncorrectly adjusted shift rod
SBent shift shaft
Shift drum and shift forks
SForeign object in a shift drum groove
SSeized shift fork
SBent shift fork guide bar
Transmission
SSeized transmission gear
SForeign object between transmission gears
SIncorrectly assembled transmission
JUMPS OUT OF GEAR
Shift shaft
SIncorrect shift pedal position
SIncorrectly returned stopper lever
Shift forks
SWorn shift fork
Shift drum
SIncorrect axial play
SWorn shift drum groove
Transmission
SWorn gear dog