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James Cadet J6 Deluxe. 125cc. 1952-1953

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Frame numbering Frame numbers were prefixed M for 1952.  They may have used an S suffix to denote "springer"  They used the prefix J5 for 1953.  
Engine Villiers Mk 13D. Capacity 125cc.  50mm x 62mm
Gears Three speed.
Frame Single downtube with detachable rear frame.  Plunger rear suspension.
Forks Model 6 lightweight telescopic fork. Undamped three-rate springs.  Plastic gaiters.
Tyres 3.00" x 19"
Wheel rims Dunlop WM1 36 hole. Silver painted (Argenized)
Ignition timing 5/32" before top dead centre.
Points gap 0.015"
Plug gap 0.018" - 0.025"
Carburettor Villiers Type 3 / 4
Jet size Main jet 120cc
Needle No. 3
Needle setting 2 13/32" out.
Tank capacity 2 gallons approximately.  Use of unleaded fuel will cause no problems
Petroil mixture 16:1 as originally specified. Can be safely reduced to 20:1 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 Fill to level plug
Chains Primary:  ⅜" x " x 0.225".  64 pitches. Renold 110038.
Final drive: " x 0.335" x 0.205".  116 pitches.  Renold 110044
Sprockets Crankshaft: 18 teeth.  ⅜" pitch.
Gearbox:  17 teeth.  " pitch.
Rear Wheel sprocket:  44 teeth as standard.
Brakes 5" front & rear.
Bulbs: Direct Main bulb:  6v - 24 / 24w. 
Tail lamp: 6v - 3w M.B.C.
Tail & stop lamp (where fitted) 6v - 18 / 3w
Parking lamp bulb:  6v - 3w amp 
Parking  lamp battery  Ever Ready No. 1289
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