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Experience
Learner driver: softer spring with more rebound damping.
Expert: Hard spring.
Weight
Weight: Hard spring.
Lightweight: Soft spring
Track type
- Many corners:
Lower the front end slightly (increase the fork tube height 5mm).
This increases agility.
- Fast course with many jumps:
Lift the front (lower the fork tube height to 5mm). This increases
stability.
- Deep pits or sandy ground:
Lift the front for increased stability.
Following the preliminary adjustments, make a trial run on the ground
to evaluate the changes.
Remember:
1- Always make changes in small increments.
2- Make sure the rider is logical in their evaluation.
3- A change in the front suspension requires a change in the rear
suspension and vice-versa.
Front and rear compatibility
Use this procedure to determine if the suspension is balanced
reasonably well: Situate the motorcycle so that it is perpendicular to
the ground. While standing next to the machine, pull on the front
brake and place one foot on the brake firmly. If the bike maintains
its level attitude as the suspension is compressed, the suspensions
are well balanced. Sit astride the bike and take up a riding posture
the check to see if the bike is in a horizontal position. If one end
drops noticeably more than the other, the front and rear are not
compatible and must be readjusted to achieve a better balance.
This is one of the most effective adjustment procedures but suspension
settings will vary depending on the conditions at the track and the
rider's preferences.
Front end searching going downhill or accelerating out of a
bend?
Front forks too soft.
1. Increase the oil level 10 mm.
2. Use alternate harder spring, or increase spring preload.
Front end knifes or over-steers in turns (front end tends to turn
inward)?
Front forks too soft.
1. Increase the oil level 10 mm.
Front end pushes out or slides in turns
1. Release air from the fork.
2. Reduce the oil level 10 - 20 mm.
3. Use a softer spring.
