2008 Arctic Cat ThunderCat ATV Service Manual, Page 20Get this manual
Shift Lever CHECKING ADJUSTMENT
3Tighten the jam nuts securely; then shift the transmission to each position and verify correct adjustment4Install the left-side engine cover and seat making sure the seat locks securely in placeNOTE: An (Error) in the gear position icon indicates no signal or poor ground wire connection in the circuitTroubleshoot the harness connectors, gear shift position connector, gear shift position switch, and LCD connector
FrameWeldsRacks
The frame, welds, and racks should be checked periodically for damage, bends, cracks, deterioration, broken components, and missing componentsIf replacement or repair constitutes removal, see Section 8