4-16 MACHINE TUNING
FRONT FORK TUNING PROCEDURE
Test ride the motorcycle and find out how the front suspension reacts on various types of surface. According
to the symptom noticed, adjust the front fork to the best setting for rider and race track conditions. To adjust,
attempt changing fork oil capacity and compression and rebound damping force following the instructions
below.
NOTE:
When adjusting the front fork oil capacity, make sure that the oil level is within the specified range. Also, the
capacity should be increased or decreased by 1 ml (0.034/0.035 US/Imp oz) [Approx. 1.8 mm (0.07 in)] at a
time.
When adjusting the damping force, attempt turning the adjuster 1 to 2 click stops at a time for each adjust-
ment.
SYMPTOM SECTION ADJUSTMENT PROCEDURE
Feels too hard overall • Jump
• Large bumps
• Series of medium
bumps
1. Adjust both compression and rebound damping
force to a softer setting.
2. Decrease fork oil capacity.
3. Replace the spring with an optional softer one.
Feels too soft overall and
bottoms
•Jump
• Large bump
• When braking
1. Adjust the compression damping force to a
stiffer setting.
2. Increase fork oil capacity.
3. Replace the spring with an optional stiffer one.
Feels too hard near end of
travel
• Jump 1. Decrease fork oil capacity.
Feels too soft near end of
travel and bottoms
harshly
•Jump
• Large bump
1. Adjust the compression damping force to a
stiffer setting.
2. Increase fork oil capacity.
Feels too hard in the
beginning of stroke
•Jump
• Large bump
• Series of medium
bumps
• Series of small bumps
1. Adjust the compression damping force to a
softer setting.
Feels too soft and unsta-
ble
• Series of medium
bumps
• Series of small bumps
1. Adjust the rebound damping force to a stiffer
setting.
Bounces • Jump
• Large bump
1. Adjust the rebound damping force to a stiffer
setting.
Bounces • Series of small bumps 1. Adjust the rebound damping force to a softer
setting.
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