James Autocycle Deluxe. 98cc. 1946 - 1948

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Frame numbering 1946 / 47 / 48.  Prefix J
Engine Villiers Junior De Luxe. Capacity 98cc.  50mm x 50mm
Gears Single speed with clutch. Handlebar lever has "trigger" to hold clutch out.
Frame Single downtube with rigid rear.
Forks Taper tube girder type. Single, central undamped spring. (Early models may have had bicycle type front forks with no springing.)
Tyres Dunlop Carrier oversize 26" x 2"
Tyre pressures Front 20 lbs.psi.  Rear 28lb. psi.
Wheel rims Dunlop WMO 36 hole.  Silver painted (Argenized)
Ignition timing " before top dead centre.
Points gap 0.015"
Plug gap 0.018" - 0.025"
Plug type Original spec. Lodge CB 3
Carburettor Villiers "Junior" Type
Jet size J7
Needle No. 2
Needle setting 29 / 32" from tip of needle to bottom of slide
Tank capacity 11 pints approximately.  Use of unleaded fuel will cause no problems
Petroil mixture 16:1 as originally specified. Can be safely reduced to 24:1 with modern oils.
Gearbox capacity Remove oil level screw on side of engine casing and oil filler screw on top of casing.  Fill oil through the filler opening until oil begins to run out through the level plug hole. The correct level of oil is then assured.  Check it regularly.  Castrol "D"  SAE 140
Chaincase capacity Not applicable as the primary chain runs within the gearbox.
Chains Primary chain:  54 pitches
Final drive chain:  " x 0.305" x 0.192" wide (Coventry 112045).  Tension movement max.   ⅜" vertical
Sprockets Engine: (crankshaft) Villiers Pt. No. E4931  ⅜" pitch.
Gearbox (final drive) 10 teeth " pitch (Villiers part number D 4947)
Brakes 4" front & rear
Bulbs Main bulb:  6v - 1amp 19mm S.B.C.
Tail lamp & Parking lamp bulb:   4v - 0.3 amp M.E.S.
Parking  lamp battery  Ever Ready No. 1289 ( I wonder if they still make them ?)
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