2004-2009 Suzuki LT-Z250 Service Manual, Page 84Get this manual
GEARSHIFT FORK
SHIFT FORK TO GROOVE CLEARANCE Clearance for each gearshift fork plays an important role in the smoothness and positiveness of the shifting processMeasure the gearshift fork clearance in the groove of its respective gear with the thickness gaugeIf the clearance exceeds specification, replace the fork, its respective gear, or both Shift fork to groove clearance Standard: 0.10 0.30 mm (0.004 0.012 in) Service Limit: 0.50 mm (0.020 in)09900-20803: Thickness gauge 09900-20101: Vernier calipers