Mainshaft

DISASSEMBLY





1. Check front drive sprocket end play.
Standard: 0.2 - 0.35 mm (0.0079 - 0.0138 inch)
- If end play is not within specification, check front drive sprocket and clutch gear for wear.





2. Remove retainer ring, speedometer drive gear and steel ball.
- Be careful not to lose the steel ball.





3. Remove snap ring and spacer.





4. Use a press to remove front drive sprocket with mainshaft rear bearing and clutch gear together.
5. Remove needle bearing.





6. Remove bearing retainer, then remove snap ring.





7. Use a press to remove mainshaft front bearing from mainshaft.

INSPECTION





Gear and shaft
- Check gears for excessive wear, chips or cracks.
- Check shaft for cracks, wear or bending.
- Check coupling sleeve for wear or damage.

Baulk ring





- Check baulk ring for cracks or deformation.





- Measure clearance between baulk ring and clutch gear.
Baulk ring to clutch gear clearance: Refer to Specifications.





Bearing
- Make sure bearings roll freely and are free from noise, cracks, pitting or wear.

ASSEMBLY





1. Press mainshaft front bearing onto mainshaft.
- Pay attention to its direction.





2. Select and install snap ring with proper thickness.
Allowable clearance between snap ring and groove: 0 - 0.15 mm (0 - 0.0059 inch)
Available snap ring for mainshaft front bearing: Refer to Specifications.
3. For further procedures, refer to Assembly. Assembly