Engine
Twin cylinder, four-stroke, 90° "L" type, longitudinal,
with deep sump die-cast crankcase.
Bore:
4.41 in (112 mm)
Stroke:
2.4 in (60.8 mm)
Total displacement, cu. cm:
1198
Compression ratio:
12.5 ± 0.5:1
Max. crankshaft power, kW/HP:
143 kW/195 HP at 10750 rpm
Max. torque at crankshaft:
132 Nm / 13.5 kgm / 98.1 lbf-ft at 9000 rpm
Maximum rpm:
11,300 rpm
Important
Do not exceed the specified rpm limits in any
running conditions.
Timing system
Double overhead camshaft (DOHC) driven by chain
and gearwheels, 4 valves per cylinder, desmodromic
system.
Desmodromic timing system
1) Opening (or upper) rocker.
2) Opening rocker shim.
3) Closing (or lower) rocker shim.
4) Return spring for lower rocker.
5) Closing (or lower) rocker.
6) Camshaft.
7) Valve.
6
2
1
4
7
(fig. 190)
2
5
5
4
7
fig. 190
245