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SPECIFICATIONS
Engine
4-stroke, twin cylinder
Cylinder configuration ................................. 90° V-twin
Bore: ................................................................ 92 mm
Stroke: ............................................................. 80 mm
Capacity: ......................................................... 1064 cc
Compression ratio: ............................................. 9.8:1
Timing system
With rods and rockers and 2 valves per cylinder. One
camshaft in the crankcase driven by duplex chain with
automatic chain tensioner.
Feed system
Indirect electronic injection, timed sequential MAGNETI
MARELLI IAW 15M "Alfa-N" system, 2 throttle valves Ø
40 mm with Weber IW031 injectors, electric pump with
pressure regulator, digital control of optimised injection
times.
Exhaust system (version without catalytic con-
verter)
In stainless steel - 2 tubes equipped with balancing bar,
connected to an expansion chamber and two silencers.
Exhaust system (version with catalytic converter)
In stainless steel - 2 tubes equipped with balancing bar,
connected to an expansion chamber and two silencers
catalytic converter.
Lambda probe for exhaust gas control is fitted in the
expansion chamber.
Lubrication
Pressure fed by gear pump
Wire mesh and cartridge filters on oil sump
Normal lubrication pressure 3.8÷4.2 kg/cm2 (regulated
by a special valve) thermal expansion valve and cooling
radiator.
Low oil pressure sensor (electrical) on crankcase.
Generator / Alternator
On front of crankshaft.
Output power: 350W at 5000 rev./min. (14V - 25A).
Ignition
"MAGNETI MARELLI" Inductive discharge digital elec-
tronics.
Spark plugs: ...................................... NGK BPR 6 ES.
Spark plug gap: .............................................. 0.7 mm
2 ignition coils ............................... mounted on frame.
Starter
Electric starter motor 12V-1,2 Kw with electromagnetic
ratchet control. Ring gear on the flywheel. START «
push-button on right handlebar.
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