Fully degrease the crankshaft splined end and the corresponding spline on the primary drive gear.
Position the spacer (c) onto the crankshaft.
Fit the driving gear (b) onto the crankshaft with the oil pump drive sprocket facing the crankcase.
Temporarily secure the gear with the washer (4) and nut (3).
Important
If fitting a new primary driving gear (b), check the backlash.
To check the clearance, temporarily fit the clutch bell (1) complete with the primary driven gear (a) on the gearbox primary shaft. Fix a dial gauge to the engine crankcase, positioning the stylus against a gear tooth.
Turn the driven gear (a) to mesh the teeth and check that clearance ranges between 0.05 And 0.07 Mm.
Repeat the check at 16 different points of the driven gear.
If the measured values are outside the permissible tolerance limits, try changing the position of driven gear (a) on the primary shaft, leaving the driving gear (b) on the crankshaft. If still outside tolerance values, renew the whole primary drive gear pair.
After checking backlash, fit the bush 88713.3406 On a torque wrench, lock the pinion (b) with the holding tool 88713.3417.
Position the washer (4) and the ring nut (3). Use the special tool 88713.3406 To tighten the ring nut (3) to a torque of 190 nm (min. 171 Nm - max. 209 Nm) (sect. 3 - 3, Engine torque settings).
Refit the oil pump (d) and check the clearance between the oil pump gear and primary drive gear on the crankshaft (sect. 9 - 2.1, Refitting the oil pump).
Thoroughly degrease the mating surfaces of the clutch bell (1).
Fit the spacer (2) onto the primary shaft. Fit the clutch housing (1) along with the driven gear (a).
Dashboard diagnosis
This function identifies any abnormal vehicle behaviours.
The dashboard activates any abnormal vehicle behaviours in real time (errors).
At key-on (at the end of the check) one or more "errors" are displayed in red
(only if they are active).
When an "error" is triggered, the indication (r ...
Tips for use on the road
Activate the dtc, select level 8 and ride the motorcycle in
your usual style; if the level of dtc intervention seems
excessive, try reducing the setting to levels 7, 6, etc., Until
you find the level that suits you best.
If changes in the grip conditions and/or circuit characteristics
and/or ...
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 ...