Apply the recommended threadlocker to the screws (7).
Install the lower chain guard (15) on the swingarm (8), fastening it with the screws (7): tighten the screws (7) to a torque of 4 nm +/- 10% (sect. 3 - 3, Frame torque settings).

Locate the swingarm (8) on the frame.
Lubricate with recommended grease the swingarm shaft (1) with the screw (3) and insert it fully home on the frame and through the brackets (36).


On the bike opposite side fix the swingarm shaft (1) with the screw (3) after having lubricated it with recommended grease, and fit the washer (2) between frame and swingarm.
Tighten the screw (3) to the torque of 72 nm +/- 5% (sect. 3 - 3, Frame torque settings).

Position the rear brake hose, the rear speed sensor cable, and the rear wiring on the swingarm, by starting the screws (26) of the cable grommet (25).
Tighten the screw (26) to a torque of 8 nm +/- 10% (sect. 3 - 3, Frame torque settings).

Refit the upper chain slider (24) and the hose guide (13) and tighten the screws (7) to a torque of 4 nm +/- 10% (sect. 3 - 3, Frame torque settings).



Refit the rear wheel eccentric hub as described in chapter "refitting the rear wheel eccentric hub and rear wheel shaft" of this section.

Overhauling the rear swingarm
Final driveEngine
Twin cylinder, four-stroke, 90 "l" type, longitudinal, with
deep sump die-cast crankcase.
Bore, mm: 106
Stroke, mm:
67.9
Total displacement, cu. Cm:
1198
Compression ratio:
11.5В±0.5:1
Max power at crankshaft (95/1/ec), kw/hp:
119 kw/162 hp at 9,500 rpm
Max torque at crankshaf ...
Overhaul of the crankcase halves
Carefully examine the engine crankcase halves.
Check that the surfaces of the crankcase halves are perfectly flat using a
reference surface.
Check that the bearings (1) and (18), and the bushings (2) and (17) are in
optimum conditions. Note that the main
bearings must always be changed in p ...
Timing system
Desmodromic (type) with four valves per cylinder,
operated by eight rocker arms (4 opening rockers and 4
closing rockers) and two overhead camshafts. It is operated
by the crankshaft through spur gears, belt rollers and toothed
belts.
Desmodromic timing system (fig. 159)
Opening (or upp ...