Yamaha XVS650 Service Manual page 324

UNSTABLE HANDLINGI
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FAULTY LIGHTING AND SIGNAL SYSTEMS.
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ES908000
UNSTABLE HANDLING
UNSTABLE HANDLING
Handlebar
• Improperly installed or bent
Steering
• Improperly installed handlebar crown
• Bent steering stem
• Improperly installed steering shaft
(improperly tightened ring nut)
• Damaged ball bearing or bearing race
Swingarm
• Worn bearing or bushing
• Bent or damaged
Rear shock absorber
• Faulty spring
• Oil and gas leakage
Tire
• Uneven tire pressures on both sides
• Incorrect tire pressure
• Uneven tire wear
Front fork
• Uneven oil levels on both sides
• Uneven spring tension
(uneven damping force adjuster position)
• Broken spring
• Twisted front fork
Wheel
• Incorrect wheel balance
• Deformed cast wheel
• Damaged bearing
• Bent or loose wheel axle
• Excessive wheel runout
• Loosed spoke
Frame
• Bent
• Damaged steering head tube
• Improperly installed bearing race
£8909000
FAULTY LIGHTING AND SIGNAL SYSTEMS
HEADLIGHT DOES NOT LIGHT BULB BURNT OUT
• Improper bulb • Improper bulb
• Too many electric accessories • Faulty battery
• Hard charging (broken stator coil wire, • Faulty rectifier/regulator
faulty rectifier/regulator) • Improperly grounded
• Incorrect connection • Faulty main and/or lights switch
• Improperly grounded • Bulb life expired
• Poor contacts (main or lights switch)
• Bulb life expired
FLASHER DOES NOT LIGHT
• Improperly grounded
• Discha rged battery
• Faulty turn switch
• Faulty flasher relay
• Faulty wire harness
• Loosely connected coupler
• Burnt-out bulb
• Faulty fuse
FLASHER BLINKS SLOWLY
• Faulty flasher relay
• Faulty main and/or turn switch
• Improper bulb
8-5
FLASHER REMAINS LIT
• Faulty flasher relay
• Burnt-out bulb
FLASHER BLINKS QUICKLY
• Improper bulb
• Faulty flasher relay
• Burnt-out bulb
HORN DOES NOT SOUND
• Fau Ity battery
• Faulty fuse
• Faulty main and/or horn switch
• Improperly adjusted horn
• Faulty horn
• Broken wire harness