18.
SUSPENSION SETTING GUIDE
FEELS ROUGH
f—
1.
Unsmooth sliding -
-2.
Spring preload too
high
■3.
Bottoming
r
4.
Damping too much
5. Tire too hard
FEELS TOO SOFT
UNDERSTEERS
Damping not enough
Caster too much
CHATTERS->
(Small pitching)
-1.
Rattles in steering
head pipe
-2.
Tire or wheel im
balanced or deformed
-3.
Tire not matched
■
4. Chassis not matched
t
KICKS BACK ->
(Steering shaking)
■1.
If occurs when power on.
Insufficient fork .—
rebound travel I—
-2.
If occurs when power
off.
Insufficient fork com-
pression travel
Too much fork com- -
pression travel
u
t
• Check suspension sliding parts.
• Check for front axle off-center or twisted fork.
• Decrease spring preload.
• Change with spring with lower spring constant.
• Decrease
oi
I...
1
cc= 1mm; Decrease 5 cc at
a
time.
•
I
ncrease spring preload.
• Change with spring with higher spring constant.
• Increase oil.
• Decrease damping force.
• Review tire selection. Decrease pressure.
• Increase damping force.
• Increase inner tube top end protrusion.
• Decrease front fork spring preload
load.
• Increase rear spring preload.
• Decrease rear rebound damping force.
• Raise chassis rear end.
• Check tighteness of bearing and nut.
• Correct balance. Check deformation.
• Review tire selection. Try different air pressure.
• Avoid resonance by changing spring preload,
• or by changing damping force.
• Decrease spring preload.
• Increase front weight distribution. (Increase fork
inner tube top protrusion.
I
ncrease rear end height.)
Decrease front spring preload.
Decrease spring constant.
Increase front spring preload.
Increase spring constant.
-41 -
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