Faulty Front Fork Legs; Leaking Oil; Malfunction - Yamaha FZ6-ST Supplementary Service Manual

FAULTY FRONT FORK LEGS/UNSTABLE HANDLING
EAS00861

FAULTY FRONT FORK LEGS

LEAKING OIL

S Bent, damaged or rusty inner tube
S Cracked or damaged outer tube
S Improperly installed oil seal
S Damaged oil seal lip
S Incorrect oil level (high)
S Loose damper rod assembly bolt
S Damaged damper rod assembly bolt copper washer
S Cracked or damaged cap bolt O-ring

MALFUNCTION

S Bent or damaged inner tube
S Bent or damaged outer tube
S Damaged fork spring
S Worn or damaged outer tube bushing
S Bent or damaged damper rod
S Incorrect oil viscosity
S Incorrect oil level
EAS00862
UNSTABLE HANDLING
Handlebar
S Bent or improperly installed handlebar
Steering head components
S Improperly installed upper bracket
S Improperly installed lower bracket
(improperly tightened ring nut)
S Bent steering stem
S Damaged ball bearing or bearing race
Front fork leg(s)
S Uneven oil levels (both front fork legs)
S Unevenly tensioned fork spring (both front
fork legs)
S Broken fork spring
S Bent or damaged inner tube
S Bent or damaged outer tube
Swingarm
S Worn bearing or bushing
S Bent or damaged swingarm
Rear shock absorber assembly(-ies)
S Faulty rear shock absorber spring
S Leaking oil or gas
Tire(s)
S Uneven tire pressures (front and rear)
S Incorrect tire pressure
S Uneven tire wear
Wheel(s)
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 Improperly installed bearing race
9-5
TRBL
SHTG