Unstable Handling - Yamaha XV16AL Service Manual

EAS00864

UNSTABLE HANDLING

Handlebar (See page 4-67 to 4-72)
• Bent or incorrectly installed handlebar
Steering head components (See page 3-41
to 3-43 and 4-73 to 4-78)
• Incorrectly installed upper bracket
• Incorrectly installed lower bracket
(incorrectly tightened ring nut)
• Bent steering stem
• Damaged ball bearing or bearing race
Front fork legs (See page 3-43 to 3-44 and
4-55 to 4-66)
• Uneven oil levels (both front fork legs)
• Unevenly tensioned fork spring (both
front fork legs)
• Damaged fork spring
• Bent or damaged inner tube
• Bent or damaged outer tube
Swingarm (See page 4-79 to 4-89)
• Worn bearing or bushing
• Bent or damaged swingarm
EAS00866
FAULTY LIGHTING OR SIGNALING SYSTEM (See page 7-31 to 7-45)
HEADLIGHT DOES NOT LIGHT
• Wrong headlight bulb
• Too many electrical accessories
• Hard charging
• Incorrect connection
• Incorrectly grounded circuit
• Poor contacts (main or dimmer switch)
• Burnt-out headlight bulb
HEADLIGHT BULB BURNT OUT
• Wrong headlight bulb
• Faulty battery
• Faulty rectifier/regulator
• Incorrectly grounded circuit
• Faulty main switch
• Faulty dimmer switch
• Headlight bulb life expired
8
TAIL/BRAKE LIGHT DOES NOT LIGHT
• Wrong tail/brake light bulb
• Too many electrical accessories
• Incorrect connection
• Burnt-out tail/brake light bulb
TAIL/BRAKE LIGHT BULB BURNT OUT
• Wrong tail/brake light bulb
• Faulty battery
• Incorrectly adjusted rear brake light
switch
• Tail/brake light bulb life expired
UNSTABLE HANDLING/FAULTY LIGHTING OR
SIGNALING SYSTEM
Rear shock absorber assembly
(See page 4-79 to 4-89)
• Faulty rear shock absorber spring
• Leaking oil or gas
Tires (See page 3-45 to 3-48)
• Uneven tire pressures (front and rear)
• Incorrect tire pressure
• Uneven tire wear
Wheels (See page 3-48 to 3-49 and
4-1 to 4-21)
• Incorrect wheel balance
• Deformed cast wheel
• Damaged wheel bearing
• Bent or loose wheel axle
• Excessive wheel runout
Frame
• Bent frame
• Damaged steering head pipe
• Incorrectly installed bearing race
TURN SIGNAL DOES NOT LIGHT
• Faulty turn signal switch
• Faulty turn signal relay
• Burnt-out turn signal bulb
• Incorrect connection
• Damaged or faulty wire harness
• Incorrectly grounded circuit
• Faulty battery
• Blown, damaged, or incorrect fuse
TURN SIGNAL BLINKS SLOWLY
• Faulty turn signal relay
• Faulty main switch
• Faulty turn signal switch
• Incorrect turn signal bulb
TURN SIGNAL REMAINS LIT
• Faulty turn signal relay
• Burnt-out turn signal bulb
TURN SIGNAL BLINKS QUICKLY
• Incorrect turn signal bulb
• Faulty turn signal relay
• Burnt-out turn signal bulb
HORN DOES NOT SOUND
• Incorrectly adjusted horn
• Damaged or faulty horn
• Faulty main switch
• Faulty horn switch
• Faulty battery
• Blown, damaged, or incorrect fuse
8 - 5
• Faulty wire harness
TRBL
SHTG