Difference between revisions of "AJS Model 31"
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{{DISPLAYTITLE:{{PAGENAME}}: history, specs, pictures}} | {{DISPLAYTITLE:{{PAGENAME}}: history, specs, pictures}} | ||
{{ | {{Motorcycle | ||
|name = | |name = AJS Model 31 650 | ||
| | |photo=ajs-model-31-650-1957-1966-0.jpg | ||
|aka = 650 Swift | |aka = 650 Swift | ||
|manufacturer = | |manufacturer = AJS | ||
|parent_company = | |parent_company = | ||
|production = 1957 | |production = 1957 | ||
Line 10: | Line 10: | ||
|predecessor = | |predecessor = | ||
|successor = | |successor = | ||
|class = | |class = Classic | ||
|engine = air-cooled, four-stroke, parallel twin cylinder, OHV, 2 valves per cylinder | |engine = air-cooled, four-stroke, parallel twin cylinder, OHV, 2 valves per cylinder | ||
|bore_stroke = 71.1mm x 71.1mm | |bore_stroke = 71.1mm x 71.1mm |
Latest revision as of 20:17, 23 November 2019
The AJS Model 31 650 Swift was a air-cooled, four-stroke, parallel twin cylinder, OHV, 2 valves per cylinder Classic motorcycle produced by AJS in 1957. Claimed horsepower was 43.05 HP (32.1 KW) @ 6000 RPM.
AJS Model 31 650 | |
Manufacturer | |
---|---|
Also called | 650 Swift |
Production | 1957 |
Class | Classic |
Engine | air-cooled, four-stroke, parallel twin cylinder, OHV, 2 valves per cylinder |
Bore / Stroke | 71.1mm x 71.1mm |
Compression ratio | 7.5:1 |
Horsepower | 43.05 HP (32.1 KW) @ 6000RPM |
Ignition | magneto |
Transmission | Gear box: 4-speed, manual Final Drive: chain |
Suspension | Front: telescopic fork Rear: dual shocks |
Brakes | Front: drum Rear: drum |
Front Tire | 3.25 -19 |
Rear Tire | 3.50 -19 |
Weight | |
Fuel Capacity | 4.23 Gallon (16.00 Liters) |
Manuals | Service Manual |
EngineEdit
A 71.1mm bore x 71.1mm stroke result in a displacement of just 646.0 cubic centimeters.
DriveEdit
The bike has a 4-speed, manual transmission. Power was moderated via the wet multi-disc, manual.
ChassisEdit
It came with a 3.25 -19 front tire and a 3.50 -19 rear tire. Stopping was achieved via drum in the front and a drum in the rear. The front suspension was a telescopic fork while the rear was equiped with a dual shocks.
1957 - 1966 AJS Model 31 650Edit
The 1957 AJS Model 31 650 has, at its heart, an air-cooled, four-stroke, 646cc, parallel twin powerhouse paired to a four-speed manual transmission, and can reach a maximum power output of 43 horsepower at 6000 rpm.
It comes standard with features such as a blacked-out frame, a suspension package composed of a front telescopic fork and dual shocks as a rear suspension, a dual seat, a chromed, dual exhaust system, laced wheels, full fenders, and a dual tone paint scheme.