Gearbox assembly: gearbox shafts
Also check that the component parts of the gear selector mechanism are in good condition.
Engage the gears and check that the gearchange mechanism does not stick (selector fork - gear groove, and fork pin -
desmodromic drum groove) due to incorrect end float. Restore the correct end float by shimming the gearbox shafts and
the selector drum with suitable shims.
For the total gearbox shaft and selector drum end clearance values, refer to Sect. 3 - 1.1Gearbox.
Inspection of the gear selector forks
Visually inspect the gear selector forks. Bent forks must be renewed as they may lead to difficulties in gear changing or
may suddenly disengage when under load.
Use a feeler gauge to check the clearance of each fork in its gear groove.
If the service limit has been exceeded, check whether or not it is necessary to replace the gear or the fork by referring to
the limits specified for each part (Sect. 3 - 1.1Gearbox).