Unstable Handling - Yamaha XV1600A1999 Service Manual

UNSTABLE HANDLING/FAULTY LIGHTING OR
EAS00864

UNSTABLE HANDLING

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