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James Cavalier L17. 175cc.1958-1959

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Frame numbering 1958 prefix AL17-xxx.   1959 prefix BL17-xxx
Engine AMC 17T. Capacity 171cc.  59mm x 63mm
Gears Four speed
Frame Tubular front and top rails.  Pressed & fabricated central tub and swinging-arm.
Forks Telescopic (as fitted to K7 Captain)
Fork oil capacity 55cc per leg.  SAE 20
Tyres 3.00" x 18"
Tyre pressures Front 16 lbs.psi.  Rear 24 lbs.psi.
Wheel rims Dunlop WM2 36 hole
Ignition timing " before top dead centre.
Points gap 0.015"
Plug gap 0.018" - 0.022"
Plug type Original spec. Lodge CCL 14
Carburettor Amal  type 370/1.   15/16" bore
Main jet 240
Pilot jet 25
Throttle slide No. 4
Needle jet 0.106
Needle E. 
Needle setting Normal setting 3rd notch from the top.
Tank capacity 2 gallons.  Use of unleaded fuel will cause no problems
Petroil mixture 20:1 as originally specified.
Gearbox capacity Fill until oil runs out through the level screw hole behind the kickstarter.  SAE 50
Chaincase capacity Fill to drain plug level.
Chains Primary chain:  58 pitches.  ⅜ x x 0.225"
Final drive chain:  118 pitches. " x 0.335" x 0.205" wide .  Tension movement max.   ⅜" vertical
Sprockets Engine: (crankshaft) 18 teeth.  ⅜" pitch.
Gearbox (final drive) 16 teeth " pitch.
Brakes 5" front & rear
Bulbs:  Rectified. Main headlamp bulb:  6v - 30 / 24w.  Pre-focussed
Tail lamp:  6v - 3w  M.E.S.
Tail / Stop-light (if fitted):  18 / 3w.
Speedo lamp: 6.5v - 0.3amp  M.B.C.
Parking  lamp:  6v - 3w M.B.C.
Parking  lamp battery  Ever Ready No. 1289 ( I wonder if they still make them ?)
Battery Lucas type PUZ5E-10
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