2008 Arctic Cat ThunderCat ATV Service Manual, Page 142Get this manual
4Test drive the ATV on dry, level surface and note any pulling to the left or right during acceleration, deceleration, and brakingNOTE: If pulling is noted, measure the circumference of the front and rear tires on the pulling sideCompare the measurements with the tires on the opposite sideIf pulling is noted during braking only, check and adjust the brakes as necessary and recheck operation (see Section 2) 5Increase the air pressure in the tires with the smallest circumference measurement until all tires are equal in circumference6Repeat steps 4-5 as necessary to ensure proper handling
Troubleshooting
Problem: Suspension too soft Condition
1Spring(s) weak 2Shock absorber damaged 3Shock absorber preload too low
1Replace spring(s) 2Replace shock absorber 3Adjust shock absorber preload
Problem: Suspension too stiff Condition