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Engine
Longitudinal 90º "L" twin cylinder, four-stroke.
Bore (mm):
106.
Stroke (mm):
67.9.
3
Total displacement cm
:
1198.4.
Compression ratio:
12.7±0.5:1.
Max power at crankshaft (95/1/EC), kW/HP:
125 kW 170 CV @ 9,750 rpm.
Max torque at crankshaft (95/1/EC):
13.4 kgm/ 131.4 Nm at 8,000 rpm.
Max rotation speed, rpm:
10,700.
Important
Do not exceed the specified rpm limits in any running
conditions.
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. Driven
by the crankshaft through spur gears, timing belt pulleys
and toothed timing belts.
Desmodromic timing system
1) Opening (or upper) rocker arm.
2) Opening (upper) shim.
3) Closing (lower) shim.
4) Return spring for lower rocker arm.
5) Closing (lower) rocker arm.
6) Camshaft.
7) Valve.
6
2
1
5
E
(fig. 97)
2
1
3
5
4
7
fig. 97
111
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