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 - 1.1, Gearbox).



Overhaul of the gearbox
Inspection of the gear selector drumHeadlight aim
The motorcycle must be perfectly upright with the tires inflated to the
correct pressure and with a rider seated, perfectly
perpendicular to the longitudinal axis.
Position the motorcycle 10 metres from a wall or a screen.
On the wall or surface, draw a horizontal line at the same height fr ...
Removal of the swingarm
Before removing the parts in question, you must first carry out the following
operations:
Remove the rear wheel eccentric hub as described in chapter "removal of the
rear wheel eccentric hub and rear wheel
shaft" of this section.
Loosen screws (7) and remove the hose grommets (13), (15) ...
Overhaul of the connecting rods
Make the following dimensional checks on the connecting rods:
Clearance with gudgeon pin on assembly.
In the event of excessive wear (sect. 3 - 1.1, Crankshaft), replace the
connecting rod.
The small end bushing must be in good condition and firmly driven into its seat.
Check for para ...