10.FINAL REDUCTION/ TRANSMISSION SYSTEM MXU 250R/300R Measure the guide bar runout. Out of specification Replace. Service Limit: Less than 0.03 mm (0.0012 in) Do not attempt to straighten a bent guide bar. Inspect the shift fork cam follower and shift Shift Fork Cam Follower fork pawl. Scoring/beads/wear Replace. Shift Fork Cam Pawl Check the shift cam groove and shift cam gear. Wear or damage Replace. 10-9