Check the cam contact surfaces for scratches, grooves, steps and waving.
Worn cams are frequently the cause of poor timing, which leads to loss of engine power.
Place the camshaft between two centres and check the run-out on the areas indicated using two dial gauges.
Service limit: 0.1 Mm.

Visually inspect the camshaft tracks for scoring and abnormal wear. If any of the above defects are found, the camshaft should be renewed.
If you find scoring or excessive wear, check the operation of the engine lubrication circuit.



Removal of the camshafts
Refitting the camshaftsRefitting the front sprocket
Grease the o-ring (16) and install it on the front sprocket spacer (15).
Fit the spacer, from the o-ring side, on the secondary shaft and drive it fully
home against the inner ring of the bearing.
Check that the splines of the gearbox secondary shaft and the sprocket are in
perfect condi ...
Flexible wiring/hoses positioning
The routing of the abs wiring has been optimised to ensure the minimum
obstruction.
Each section is designed to prevent interference with parts that might damage
wires or cause operating failures when
riding.
Table a
Table b
Table c
...
Checking valve lift
Set the engine to the configuration described for the "checking and adjusting
the valve clearances", previously indicated.
Position the tool 88765.1518 On the cylinder head: the part marked "a" should be
on the intake side and the part
marked "s" should be on the exhaust side.
Seat the pl ...