Front Fork Tuning Procedure - Suzuki RM250 Owner's Service Manual

4·11 MACHINE TUNING
Front Fork Tuning Procedure
Test ride the motorcycle and find out how t he front suspension reacts on va rious t ypes of surface.
According to the sympt om noticed, adju st the front fork to the best setting for rider and race track
conditions. T o adjust, attempt changing fork oi l capacity and compressionirebound damping fol -
lowing the instructions below.
SYMPTOM SECTION
ADJUSTMENT PROCEDURE
Feels too hard overall 0 Jump
,
.
Adjust both the compression and re-
o
Large bumps
bound damping to a softer setting.
0
Series of medium
2.
Decrease fork oil capacity .
bumps
Feels too soft overall
0
Jump 1 . Adjust the compression damping to a
and bottoms
0
Large bump stiffer setting.
0
W hen braking 2. Increase fork oil capacity.
3.
Replace the spring with an optional
stiffer one .
Feels too ha rd near
0
Jump 1. Decrease fork oil capacity.
end of travel
Feels too soft near end 0 Jump 1. Adjust the compression damping to a
of travel and bottoms 0 Large bump stiffer settting.
harshly 2.
Inc rease fork oil capacity.
Feels too hard in the 0 Jump 1. Adjust the compression damping to a
beginning of stroke 0 Large bump softer setting.
0 Se ri es of medium
bumps
0 Series of sma ll
bumps
Feels too soft and
0
Series of medium 1. Adjust the rebound damping to a
unstable bumps stiffer setting.
0
Series of sma ll 2. Replace the spring with an optional
bumps stiffer one.
Bounces
0
Jump 1. Adjust the rebound damping to a
0 Large bump stiffer setting .
Bounces
0
Series of small 1. Adjust the rebound damping to a
bumps softer setting.
NOTE: When adjusting the front fork oil capacity, make sure that the oil level is within the speci-
fied range. Also, the capacity should be increased or decreased by 5 mm (Approx. 5ml) at a time.
When adjusting the damping setting, attempt turning the adjuster 1 to 2 click stops at a time for
each adjustment.