| Frame numbering |
48 - 49 prefix F. (1950 ?) 51-52
prefix M & suffix F. 53 prefix J. |
| Petrol tank |
Petrol tank fits from under top tube with
cover strip to hide tube.
In 1953 the Standard model was fitted
with the same tank as the Superlux Autocycle. It fitted entirely
beneath the frame top tube. |
| Engine |
Villiers 1F. Capacity 98cc.
47mm x 57mm.
Late 52 & 53 J3 Comet Deluxe models were fitted with the Villiers 4F. |
| Gears |
Two speed with clutch. Handlebar gear
lever has "trigger". |
| Frame |
Single downtube with rigid rear. |
| Forks |
Taper tube girder type. Single, central
undamped spring. |
| Tyres |
2.25"x 21" Standard. 2.50"x 19"
Deluxe (1949 - both models 19") |
| Tyre pressures |
Front 20 lbs.psi. Rear 28lb. psi |
| Wheel rims |
Dunlop WMO 36 hole. Silver painted
(Argenized) |
| Ignition timing |
⅛" before top dead centre. |
| Points gap |
0.012" - 0.015" |
| Plug gap |
0.020" |
| Plug type |
Original spec. Lodge H 14. Champion
J10 Com (USA) |
| Carburettor |
Villiers Type 6/0 |
| Jet size |
8 |
| Needle |
No. 2½ |
| Needle setting |
29 / 32" from tip of needle
to bottom of slide |
| Tank capacity |
1½ gallons 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 |
| Chains |
Primary chain: 56 pitches. ⅜"
pitch x 0.155" wide x ¼" roller
Final drive chain: ½" x 0.305" x 0.192" wide (Coventry 112045).
Tension movement max. ⅜" vertical |
| Sprockets |
Engine: (crankshaft) 17 teeth x ⅜" pitch.
Gearbox (final drive) 14 teeth ½" pitch |
| Brakes |
4" front & rear |
| Spokes |
Galvanised. 12g. (10g optional)
90° head |
| Bulbs: Direct |
Main headlamp bulb: 6v - 30 / 30w.
Tail lamp: 6v - 3 w
Parking lamp bulb: 3½v - 0.15amp
Parking lamp battery Ever Ready No. 1289 |
| Bulbs: Rectified |
Main headlamp bulb: 6v - 12 / 12w.
Tail lamp bulb: 6v - 3w tail filament. 15w stop light filament.
Parking lamp bulb: 6v - 3w.
Speedometer bulb: 6v - 0.17amp. |
