Faulty Gear Shifting; Hard Shifting; Shift Pedal Does Not Move; Jump-Out Gear - Yamaha TTR250L Service Manual

NB293100

FAULTY GEAR SHIFTING

HARD SHIFTING

Refer to "CLUTCH DRAGGING".
NB293120

SHIFT PEDAL DOES NOT MOVE

Shift shaft
Bent shift shaft
Shift cam, shift fork
Groove jammed with impurities
Seized shift fork
Bent shift fork guide bar
NB293140

JUMP-OUT GEAR

Shift shaft
Improperly adjusted shift lever position
Improperly returned stopper lever
Shift fork
Worn shift fork
NB294100

CLUTCH SLIPPING/DRAGGING

CLUTCH SLIPPING

Clutch
Improperly adjusted clutch cable
Loose clutch spring
Fatigued clutch spring
Worn friction plate
Worn clutch plate
Incorrectly assembled clutch
NB294120

CLUTCH DRAGGING

Engine oil
High oil level
Improper quality (high viscosity)
Deterioration
FAULTY GEAR SHIFTING/
CLUTCH SLIPPING/DRAGGING
Transmission
Seized transmission gear
Jammed impurities
Incorrectly assembled transmission
Shift cam
Improper thrust play
Worn shift cam groove
Transmission
Worn gear dog
Engine oil
Low oil level
Improper quality (low viscosity)
Deterioration
Clutch
Warped clutch plate
Unevenly tensioned clutch spring
Match mark not aligned
Loose clutch boss nut
Burnt primary driven gear bushing
Bent clutch plate
Swollen friction plate
Broken clutch boss
8 - 3
TRBL
SHTG