10. CRANKCASE/CRANKSHAFT/TRANS- MISSION SYSTEM/STARTER SPINDLE QUANNON 125 Inspect the main shaft and countershaft for wear or 4th &5th damage. Measure the main shaft and countershaft O.D. Service Limits: Main Shaft: Starter gear : 19.919mm replace if below 4th/5th gear: 19.919mm replace if below Main shaft Countershaft: Starter Idle Gear Starter idle gear: 14.926mm replace if below 1st gear: 16.426mm replace if below 2nd gear: 21.919mm replace if below 3rd gear: 19.919mm replace if below 3rd 2nd 1st Countershaft STARTER SPINDLE Disassemble the starter spindle. Inspect the starter ratchet and starter pinion for wear or damage and replace with new ones if necessary. Starter Ratchet Inspect the starter spindle return spring for deformation or damage and replace with a new one if necessary. Measure the starter ratchet I.D. Service Limit: 20.10mm replace if over Starter Pinion 10-8