Poor Medium-And-High-Speed Performance; Faulty Gear Shifting; Jumps Out Of Gear; Faul Ty Clutch - Yamaha FZ09E Service Manual

• Worn o r damaged electrode
• Worn o r damaged insulator
3. Ignition coil (s)
• Broken or shorted primary or secondary coils
• Cracked or broken ignition coil
4. Ignition system
• Faulty ECU
• Faulty crankshaft position sensor
• Broken generator rotor woodruff key
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POOR MEDIUM-AND-HIGH-SPEED
PERFORMANCE
Refer to "STARTING FAILURES" on page 9-1.
Engine
1 . Air filter
• Clogged air filter element
Fuel system
1. Throttle body (-ies)
• Faulty throttle body
2. Fuel pump
• Faulty fuel pump
EA$29530
FAULTY GEAR SHIFTING
Shifting Is difficult
Refer to "Clutch drags".
EA~~
SHIFT PEDAL DOES NOT MOVE
Shift shaft
• Improperly adjusted shift rod
• Bent shift shaft
Shift drum and shift forks
• Foreign object in a shift drum groove
• Seized shift fork
• Bent shift fork guide bar
Tran smission
• Seized transmission gear
• Foreign object between transmission gears
• Improperly assembled transmission
JUMPS OUT OF GEAR
Shift shaft
• Incorrect shift pedal position
• Improperly returned stopper lever
Shift forks
• Worn shift fork
Shift drum
• Incorrect axial play
• Worn shift drum groove
Transmission
• Worn gear dog
9-2
TROUBLESHOOTING
'"""""
FAUL TY CLUTCH
Clutch slips
1. Clutch
• Improperly assembled clutch
• Improperly adjusted clutch cable
• Loose or fatigued clutch spring
• Worn friction plate
• Worn clutch plate
2. Engine oil
• Incorrect oil level
• Incorrect oil viscosity (low)
• Deteriorated oil
Clutch drags
1. Clutch
• Unevenly tensioned clutch springs
• Warped pressure plate
• Bent clutch plate
• Swollen friction plate
• Bent clutch pull rod
• Broken clutch boss
• Burnt primary driven gear bushing
• Match marks not aligned
2. Engine oil
• Incorrect oil level
• Incorrect oil viscosity (high)
• Deteriorated oil
OVERHEATING
Engine
1 . Clogged coolant passages
• Cylinder head(s) and piston(s)
• Heavy carbon buildup
2. Engine oil
• Incorrect oil level
• Incorrect oil viscosity
• Inferior oil quality
Cooling system
1. Coolant
• Low coolant level
2 . Radiator
• Damaged or leaking radiator
• Faulty radiator cap
• Bent or damaged radiator fin
3. Water pump
• Damaged or faulty water pump
• Thermostat
• Thermostat stays closed
• Oil cooler
• Clogged or damaged oil cooler
• Hose(s) and pipe(s)
• Damaged hose
• Improperly connected hose