Zero Motorcycles MX, Руководство пользователя

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4-19
X Sport and Extreme Models:
1. Spring Tuning - Spring tuning is accomplished by
changing the air pressure within the fork. To
determine if the air pressure is correct, measure
the fork travel. This is done by:
•
Put a zip tie around the stanchion tube and
slide it up to the bottom of the wiper seal.
•
Ride the motorcycle under a variety of
conditions you normally experience, including
some conditions that you feel should use the
full fork travel.
2. Pre-load - Adding or removing air from the fork
leg changes pre-load. This is done by
unscrewing the dust cap from the top of the left
fork leg. Under the cap is a Schrader valve (A);
this is where you would add or remove the air
(see image on page 4-20). More air pressure will
have less sag and a firmer feel. Less air
pressure will have more sag and a softer feel.
The fork is designed to use zero pressure and
should
never exceed 275 kpa (40 psi ). The fork
holds a small amount of air; avoid large volume
air compressors as this will damage the fork.
3. Damping Tuning
•
Rebound Damping - Rebound damping is
adjusted by turning the slotted brass
adjuster screw (B) on the right fork leg (see
image on page 4-20). The adjuster has 4 turns
of adjustment. Turn the adjuster clockwise for
slower rebound. To speed up rebound, turn the
adjuster counter-clockwise. Start with a middle
setting and fine tune the rebound from there.
Proper rebound damping will allow the tire to
track the ground over consecutive bumps.
Rebound that is set too slow will pack-up (feel
harsh over consecutive bumps) while rebound-
•
After the ride, inspect the position of the zip
tie. Note the position from the fork wiper seal
to the axle clamp. If the zip tie is close to the
bottom you may want to stiffen up the fork or if
the zip tie moved very little you may want to
soften the fork. This is referred to as Pre-load.