Technical specifications
|
| Model: |
Viper Scrambler |
| Years: |
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
|