| Frame numbering |
1949 Prefix D.
1950 Prefix M
1951 - 52 Prefix M
1953 Prefix A5 ? |
| |
|
| Engine |
Villiers Mk 6E. Capacity 197cc.
59mm x 72mm |
| Gears |
Three speed, foot change. |
| Frame |
Single downtube with rigid rear. |
| Forks |
1949 Taper tube girder type. Single, central
undamped spring.
1950 Dunlop type forks.
1951 Model 5 forks
1952 Model 5 forks for Standard & Model 6 forks for Deluxe.
1953 Model 6 forks |
| Tyres |
3.00" x 19" |
| Tyre pressures |
Front 20 lbs.psi. Rear 25lb. psi. |
| Wheel rims |
Dunlop WM1 36 hole |
| Ignition timing |
5/32" before top dead centre. |
| Points gap |
0.015" |
| Plug gap |
0.018" |
| Plug type |
Original spec. Lodge HHN short reach. |
| Carburettor |
Villiers Type 4 / 5 two lever |
| Jet size |
0.081" |
| Needle |
No. 4½ |
| Needle setting |
Variable |
| Tank capacity |
2¼ 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 chain: 50 pitches (Renold
110044)
Final drive chain: ½" x 111 pitches. |
| Sprockets |
Engine: (crankshaft) 19 teeth x ⅜" pitch.
Gearbox (final drive) 15 teeth x ½" pitch |
| Brakes |
5" front & rear |
| Bulbs: Rectified |
Main bulb: 6v - 24 / 24w
Tail lamp: 6v - 3w
Stop light (where fitted): 6v - 18w
Parking lamp bulb: 6v - 3w
Parking lamp battery Ever Ready No. 1289 |
| Bulbs: Direct |
Main bulb: 6v - 30 / 30w
Tail lamp: 6v - 3w
Parking lamp bulb: 3.5v - 0.15amp
Speedo bulb: 6v - 0.17amp
Parking lamp battery Ever Ready No. 1289 |
