Poor Medium And High Speed Performance; Faulty Gear Shifting - Yamaha FZR400 1988-1989 Service Manual

POOR MEDIUM AND HIGH SPEED PERFORMANCE/

POOR MEDIUM AND HIGH SPEED PERFORMANCE
Refer to "Starting failure/Hard starting." (Fuel system, electrical system,
HARD SHIFTING
Refer to "Clutch dragging."
SHIFT PEDAL DOES NOT MOVE
Shift cam, shift fork
T r a n s m i s s i o n - - L :
JUMP-OUT GEAR
Shift shaft-L*
Shift fork
Shift cam-[:
Transmission
system and valve train)

FAULTY GEAR SHIFTING

PROBABLE CAUSE
Improper jet needle clip position
?
Diaphragm malfunction
?
Improperly adjusted fuel level
?
Clogged or loose main jet
??
Clogged air filter
??
Faulty fuel pump
??
PROBABLE CAUSE
Improperly adjusted shift rod
??
Bent shift shaft
Groove jammed with impurities
?
Seized shift fork
?
Bent shift fork guide bar
?
Incorrectly assembled transmission
??
Improperly adjusted
Improperly returned stopper lever
??
Worn shift fork
??
Worn gear dog
??
gear