1999-2002 TRX400EX Fourtrax Service Manual, Page 54Get this manual
MAINTENANCE
STEERING SHAFT HOLDER BEARING
Make sure the cables do not interfere with the rotation of the handlebar
Raise the front wheels off the ground and support the vehicle securelyCheck that the handlebar moves freely from side to sideIf the handlebar moves unevenly, binds, or has horizontal movement, inspect the steering shaft holder bushing and bearings (section 12)
STEERING SYSTEM
Place the vehicle on level ground with the front wheels facing straight aheadMarkthe centers of the tires with chalk to indicate the axle center heightAlign the gauge with the marks on the tires as shownCheck the readings on the gauge scalesSlowly move the vehicle back until the wheels have turned 180" so the marks on the tires are aligned with the gauge height on the rear sideMeasure the toe on the rear pan of the tires at the same points with no load on the vehicleTOE-IN: 17 15 mm (0.7 0.6 in) NOTE: Toe-in means the rear measurement is greater than the front measurement