Difference between revisions of "AJS Model 31"
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{{DISPLAYTITLE:{{PAGENAME}}: history, specs, pictures}} | |||
{{Motorcycle | |||
{{ | |name = AJS Model 31 650 | ||
|name = | |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 11: | 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 | ||
| Line 18: | Line 17: | ||
|power = 43.05 HP (32.1 KW) @ 6000RPM | |power = 43.05 HP (32.1 KW) @ 6000RPM | ||
|torque = | |torque = | ||
|ignition = | |ignition = magneto | ||
|spark_plug = | |spark_plug = | ||
|battery = | |battery = | ||
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|dry_weight = | |dry_weight = | ||
|wet_weight = | |wet_weight = | ||
|fuel_capacity = | |fuel_capacity = 4.23 Gallon (16.00 Liters) | ||
|oil_capacity = | |oil_capacity = | ||
|fuel_consumption = | |fuel_consumption = | ||
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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. | 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. | ||
==In Media== | |||
* [https://motopixel.org/pixel/some-people#ajs-model-31 Some People] | |||
* [https://motopixel.org/pixel/today-in-britain#ajs-model-31 Today in Britain] | |||
[[Category:Classic motorcycles]] | [[Category:Classic motorcycles]] | ||
[[Category: AJS motorcycles]] | [[Category:Road motorcycles]] | ||
[[Category: 1960s motorcycles]] | [[Category:AJS motorcycles|Model 31]] | ||
[[Category: 1950s motorcycles]] | [[Category:1960s motorcycles]] | ||
[[Category:1950s motorcycles]] | |||
Latest revision as of 20:17, 23 November 2019
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| 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 |
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.
Engine[edit | edit source]
A 71.1mm bore x 71.1mm stroke result in a displacement of just 646.0 cubic centimeters.
Drive[edit | edit source]
The bike has a 4-speed, manual transmission. Power was moderated via the wet multi-disc, manual.
Chassis[edit | edit source]
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 31 650[edit | edit source]
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.