Suzuki 1989 GS500EK Service Manual page 19

REF-19
12 Poor handling or stability
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Handlebar hard to turn Handlebar pulls to one side
D Steering head bearing adjuster nut too tight. Check adjustment 0 Frame bent. Definitely suspect this If the machine has been
(Chapter 1). dropped. Mayor may not be accompanied by cracking near the
D Bearings damaged. Roughness can be felt as the bars are tumed bend. Replace the frame (Chapter 5).
from side-to-side. Replace bearings and races (Chapter 5). [J Wheels out of alignment. Caused by improper location of axle
0 Races dented or worn. Denting results from wear in only one spacers or from bent steering stem or frame (Chapter 5).
position (e.g., straight ahead), from a collision or hitting a pothole 0 Swingann bent or twisted. Caused by age (metal fatigue) or
or from dropping the machine. Replace races and bearings impact damage. Replace the arm (Chapter 5).
(Chapter 5). 0 Steering stem bent. Caused by impact damage or by dropping the
0 Steering stem lubrication inadequate. Causes are grease getting motorcycle. Replace the steering stem (Chapter 5).
hard from age or being washed out by high pressure car washes. 0 Fori< tube bent. Disassemble the forks and replace the damaged
Disassemble steering head and repack bearings (Chapter 5). parts (Chapter 5).
0 Steering stem bent. Caused by a collision, hitting a pothole or by D Fori< oil level uneven. Check and add or drain as necessary
dropping the machine. Replace damaged part. Don't try to (Chapter 5).
straighten the steering stem (Chapter 5).
. . .
0 Front tire air pressure too low (Chapter 1). Poor shock absorbIng qualitIes
Handlebar shakes or vIbrates excessively
0 Tyres worn or out of balance (Chapter 6).
0 Swlngarm bearings worn. Replace worn bearings (Chapter 5).
0 Rim(s) warped or damaged. Inspect wheels for runout (Chapter 6).
0 Wheel bearings worn. Worn front or rear wheel bearings can
cause poor tracking. Worn front bearings will cause wobble
(Chapter 6).
0 Handlebar clamp bolts loose (Chapter 5).
0 Fork yoke bolts loose. Tighten them to the specified torque
(Chapter 5).
0 Engine mounting bolts loose. Will cause excessive vibration with
Increased engine rprn (Chapter 2).
Fault Finding
Too hard:
FOI1c oil level excessi~ (Chapter 5).
Fork 01/ viscosity too high. Use 8 lighter oil (see the Specifications
in Chapter 5).
Fork tube bent. Causes 8 harsh. sticking feeling (Chapl&r 5).
Shock shaft or body bent or damaged (Chapter 5).
Fork internal damage (Chapter 5).
Shock Internal damage.
TIre pressure too high (Chapler 1).
Too soft:
FOI1c or shock oil insufficient and/or leaking (Chapter 5).
Fork oil level too low (Chapter 5).
FOI1c oil viscosity too light (Chapter 5).
Fork springs weak or broken (Chapter 5).
Shock intemaf damage or leakage (Chapter 5).
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