If some "sponginess" is detected on the brake control, due to air bubbles in the system, bleed the system, as indicated in sect. 4 - 3, Changing the brake fluid.
Before bleeding a brake pump, move back the calliper pistons, as indicated in (sect. 4 - 3, Changing the brake fluid) to Drain in the pump the air collected near the abs control unit purge must be carried out by means of the corresponding joints (a) placed near the callipers and the brake pumps.
Important
Do not undo the fixing screws of the joints of the pipes on the abs hydraulic control unit, unless control unit replacement is necessary.
Important
If the abs control unit is replaced, this must be supplied with secondary circuit already full of fluid; the control unit must be fitted and the system filled and bleeded as a traditional system.



Adjusting of the air-gap phonic wheel sensor
Handlebar unitOil pump
Complete oil pump assembly
O-ring
Circlip
O-ring
Pump body
Circlip
Reducer bush
Spring washer
Screw
Screw
Spring washer
Pump drive gear
Key
By-pass plug
Locating bush
By-pass spring
By-pass valve
Spare parts catalogue
Diavel abs filters and oil pump
Diavel ...
Removal of the timing gears
Slide out driving gear (a) of timing gear pair (13) and remove the woodruff
key (14).
Relieve the staking on the lock washer (12) of the nut (11).
Restrain the driven timing gear by inserting a pin in one of the holes, and
unscrew the nut (11).
Remove the nut (11), washer (12) ...
Refitting the timing belts
Rotate the pulleys on the timing belt driveshaft until the timing mark on the
outer roller is aligned with the mark on the
clutch-side crankcase cover.
In this condition, the horizontal cylinder piston will be at top dead centre.
Install in the alternator cover seat the tool code 88713.20 ...