Polaris FST IQ LX Offroad Vehicle User Manual


 
158
TROUBLESHOOTING
SwitchBack Suspension Troubleshooting
Problem Solution (Perform only one change at a time)
Rear suspension
bottoms too easily
Verify sag dimension (see page 58). Adjust torsion spring
blocks or install optional torsion springs to achieve correct
sag dimensions.
Increase shock compression damping (see page 64).
Rear suspension
rides too stiff
Check for binding suspension components and grease all
pivot points.
Verify sag dimension (see page 58). Adjust torsion spring
blocks or install optional torsion springs to achieve correct
sag dimensions.
Decrease shock compression damping (see page 64).
Too much weight
transfer when
climbing
Verify sag dimension (see page 58). Adjust torsion spring
blocks or install optional torsion springs to achieve correct
sag dimensions.
Move limiter strap on front torque arm to high position (see
page 63).
Too little weight
transfer when
climbing
Verify sag dimension (see page 58). Adjust torsion spring
blocks or install optional torsion springs to achieve correct
sag dimensions.
Move limiter strap on front torque arm to low position (see
page 63).
Front end pushes Check for worn skags
Check for binding front suspension shafts and steering com-
ponents, grease all pivot points (elevate front of machine).
Verify sag dimension (see page 58). Adjust torsion spring
blocks or install optional torsion springs to achieve correct
sag dimensions.
Increase IFS preload (see page 55).
Move limiter strap on front torque arm to high position (see
page 63).
Steering is heavy Check skags and skis for damage.
Check ski alignment (see page 146).
Make sure spindles and all steering components turn freely.
Verify sag dimension (see page 58). Adjust torsion spring
blocks or install optional torsion springs to achieve correct
sag dimensions.
Adjust IFS preload (see page 55).
Adjust RIDER SELECT (see page 34).
Machine darts from
side to side
Check ski alignment (see page 146).
Check for binding front suspension shafts and steering com-
ponents, grease all pivot points (elevate front of machine).
Ensure skags are straight on skis.