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Velocette Viper Scrambler

Make Model	Velocette Viper Scrambler
Year	1958 - 68
Engine	Four stroke, single cylinder
Capacity	349 cc / 30.5 cub in
Bore x Stroke	72 x 86 mm
Compression Ratio	9.3:1
Cooling System	Air cooled
Lubrication	Dry sump
Carburetor	Amal TT Monobloc
Exhaust	Single, megaphone silencer
Spark Plug	KLG FE100 / Champion N3 / NGK B8ES, Lodge 3HLN
Battery	6V
Ignition	BTH racing magneto
Starting	Kick start
Max Power	26 kW / 29 hp @ 7000 rpm
Clutch	Dry, three-plate
Transmission	4 Speed constant mesh, close ratio, foot controlled
Gear Ratios	1st 17.9 / 2nd 12.46 / 3rd 9.5 / 4th 7.85:1
Final Drive	Chain
Dimensions	Length: 2260 mm / 89.0 in Width: 890 mm / 34.5 in Height: 1090 mm / 43.0 in.
Wheelbase	1365 mm / 53.75 in
Ground Clearance	165 mm / 6.5 in.
Seat Height	838 mm / 33 in.
Front Suspension	Telescopic fork with hydraulic compression and rebound damping
Rear Suspension	Woodhead-Monroe springs with hydraulic damping, later Armstrong and Girling, adjustable
Front Brakes	7 x 1 in., drum
Rear Brakes	7 x 1 in., drum
Wheels	Light alloy rims, spokes
Front Wheel	WM1 x 21
Rear Wheel	WM3 x 19
Front Tyre	3.00 x 21 in
Rear Tyre	4.00 x 19 in
Turning Radius	4.9 m / 16 ft.
Rake	27°
Wet Weight	152 kg / 330 lbs
Fuel Capacity	11 L / 3 US gal
Colours	Black/chrome, Red/black, White/black