Gilera 633721 Workshop Manual page 9

Nexus 500 euro 3
Engine
Specification
Engine
Stroke
Cubic capacity
Compression ratio
Timing system
Valve clearance: intake
Valve clearance: discharge
Valve clearance adjustment
Engine idle speed
Air filter
CO % value (measured at the intake manifold)
Starting system
Lubrication
Lubrication pressure
Minimum allowed (at 100° C)
Fuel supply
Max. power (shaft)
Max. torque (shaft)
Cooling system
Transmission
Specification
Transmission
Capacities
Specification
Engine oil (empty)
Engine oil (at oil and filter change)
Fuel tank (including reserve approx. 2 litres)
Rear hub
Cooling system
Front fork
Electrical system
Specification
Electronic ignition
Spark plug
Spark plug
ENGINE
Bore
TRANSMISSIONS
CAPACITY
ELECTRICAL SYSTEM
Desc./Quantity
Single-cylinder, four-stroke
92 mm
69 mm
460 cm³
10.5: 1
Single overhead camshaft with integrated tone wheel, control
from flywheel side chain, 4 valves and automatic start-up valve
lifting device.
0.15 mm (when cold)
0.15 mm (when cold)
By threaded adjuster on the rockers
1500 ± 50 rpm
sponge, impregnated with mixture (50% petrol and 50% oil)
1 - 1.5%
Electric starter system with freewheel.
By trochoidal pump (inside the crankcase), pressure adjust-
ment by-pass and oil filter.
4 bar
0.8 bar
Electronic injection system with electric fuel pump, Ø 38 mm
throttle body and single injector.
29 kW (39 CV) at 7250 rpm
40 N·m (4 kgm) at 5500 rpm
Fluid circulation through a motor-driven pump, 3-way thermo-
stat and electric fan.
Desc./Quantity
With automatic expandable pulley variator with torque server,
V belt, automatic clutch, gear reduction unit and transmission
housing with forced air circulation cooling.
Desc./Quantity
1.7 lt.
1.5 lt.
approx. 14.5 litres
approx. 250 cc.
approx. 1.8 litres
approx. 242 ± 3 cc (in each fork leg)
Desc./Quantity
inductive, high efficiency integrated with the injection system,
with variable timing and separate HV coil.
NGK CR7EKB
CHAMPION RG6YC
Characteristics
CHAR - 9