1986-1989 Honda TRX250 FourTrax 250R Service Manual, Page 29Get this manual
MAINTENANCE
DRIVE CHAIN SLIDER
DRIVE CHAIN SLIDERS
Check the upper and lower drive chain sliders for wear or damage When the depth of the grooves in the slider reaches 2.0 mm (0.08 inlremove materia to lower the height of the center ridge between the grooves to less than 2.0 mm (0.08 in)Replace the sliders when the depth of the grooves reaches 6.0 mm (18 in) or more
(2) CUT HERE
2.0 mm (0.08 in)
(3) REPLACE
DRIVE CHAIN ROLLER
Check the drive chain roller for wear or damageReplace the roller when the depth of the grooves reach 2.0 mm (18 in) or more
2.0 mm (1 8 in)