APRILIA RS 660 User Manual

•
Disconnect the vacuum valve (18) from
the support.
•
Remove the complete filter box (19).
•
If necessary, it is possible to separate the upper duct from the filter box base.
Checking the ignition timing
To proceed with the engine timing check, it is nec-
essary to first remove the fuel tank, the side fair-
ings, the complete filter box, the throttle body, the
canister, the ignition switch assembly and clutch
housing.
Then proceed as described:
COMPONENTS DISASSEMBLY
•
Working from the left side of the mo-
torcycle, having removed the inspec-
tion cap, rotate the engine clockwise
until the top dead centre of cylinder 1
is reached.
•
Rotate a further +20° to intercept the
hole in the crankcase on the right side
of the vehicle near the crankshaft tim-
ing gear.
•
Insert the first centring pin (1).
Maintenance RS 660 - Tuono 660
MAIN - 68

APRILIA RS 660 Specifications

General

Displacement	659 cc
Bore x Stroke	81 mm x 63.93 mm
Compression Ratio	13.5:1
Maximum Power	100 HP (73.5 kW) @ 10, 500 rpm
Maximum Torque	67 Nm @ 8, 500 rpm
Transmission	6-speed
Frame	Aluminum dual beam chassis
Front Tire	120/70 ZR 17
Rear Tire	180/55 ZR 17
Seat Height	820 mm
Dry Weight	169 kg
Wet Weight	183 kg
Engine Type	Parallel twin
Fuel System	Electronic fuel injection with 48 mm throttle bodies
Front Suspension	Kayaba 41 mm upside-down fork, adjustable rebound and preload
Rear Suspension	Kayaba monoshock, adjustable rebound and preload
Front Brake	Dual 320 mm discs, Brembo radial calipers
Rear Brake	220 mm disc, Brembo caliper
ABS	Cornering ABS
Fuel Capacity	15 liters
Electronics	Ride-by-wire, multiple riding modes, traction control