Yamaha RS90GTZ Service Manual page 114

TROUBLESHOOTING (SKI, SUSPENSION)
SYMPTOM DESCRIPTION
Rear suspension is too harsh
over small bumps.
Not enough weight transfer.
Track won't hook up.
POSSIBLE CAUSE
• Too much rear/center shock
spring preload and/or the
spring used is too stiff.
• Shock absorber oil is contami-
nated.
• Rear suspension linkages and/
or pivot arms binding.
• Limiter straps length has been
shortened.
• Control rod adjustment does
not provide enough weight
transfer.
• Not enough center shock
spring preload and/or the lim-
iter straps are too short.
• Too much rear shock spring
preload.
2-91
INSP
ADJ
POSSIBLE REMEDY
• Reduce rear/center spring pre-
load (set rear spring preload
for correct ride height). If nec-
essary, select softer spring.
• Replace shocks.
• Inspect for free movement of
rear suspension linkages and
arms. Replace damaged com-
ponents and apply grease to all
pivot areas.
• Lengthen limiter straps length.
• Adjust control rod to allow
more weight transfer.
• Increase center shock spring
preload and lengthen limiter
straps.
• Reduce rear shock spring pre-
load.