WEIGHTS AND DIMENSIONS
Specification Desc./Quantity
Kerb weight 248 ± 10 kg
Maximum weight allowed 450 kg
Maximum height 1300 ÷ 1370 mm
Width 790 mm
Wheelbase 1585 mm
Length 2230 mm
Engine
ENGINE
Specification Desc./Quantity
Type 90° V-twin engine, 4-stroke, with double spark plug
Cubic capacity 839 cm3
Bore x stroke 88 x 69 mm
Compression ratio 10.5 ± 0.5 : 1
Engine idle speed 1,250 ± 100 rpm
Timing system 4 valves, single overhead camshaft, driven.
Valve clearance Inlet: 0.15 mm
Outlet: 0.15 mm
MAX. Power 50.5 kW at 7,750 rpm
MAX. torque 71 Nm at 4,500 rpm
Lubrication Engine lubrication by a dry sump system, with
double lobe pump (one for delivery and one for re-
turn), controlled by a chain and paper filter.
Lubrication pressure 3.5 ÷ 4 bar
Minimum lubrication pressure (100° C) 0.8 bar
Fuel supply Multipoint electronic injection with single Ø 38-mm
throttle body and electric fuel pump.
Cooling Forced liquid circulation cooling.
Fuel Unleaded petrol (95 RON)
TECHNICAL SPECIFICATIONS
OIL PUMP
Specification Desc./Quantity
Type Trochoidal
Rotor washers Delivery pump: 12 mm
Scavenge pump: 22 mm
Assembly clearances Lobe ends: 0.04 ÷ 0.1 mm
External rotor radial clearance 0.05- 0.12 mm
Levelness 0.1 mm
BY-PASS
Specification Desc./Quantity
Type with piston
Plunger diameter Ø 14-0.016 -0.043 mm
Unloaded spring length 52 mm
Calibration pressure 4.5 bar
Characteristics GP 800 i.e.
CHAR - 4