Paul - no, the engine is all thumper (design goes back the the early thirties) - just has the commando primary grafted on.
Dave sorry about the amount of info. I was trying to cover all the points that affect fitting the newer primary.
Nice Model 50. I don't think they ever had widelines but yours looks very original. The slimmer front guard lightens the look a bit.
A few of things worth knowing (that you may already know):
1. VW pushrod o-rings are slightly thicker in section an, I think, have a better compound and work very well on ES2/Model 50s.
2. Pazon ignition instead of the old points makes starting easier and more reliable. Fits very well and doesn't look out of place
3. A fair bit more zoom can be had simply by enlarging the inlet port and fitting a bigger carb. Model 50's really were quite asthmatic
4, playing around with cam timing can also give more zip. They have the advantage over the Dommie/Commando in that they have separate inlet and exhaust cams Even one tooth advance on the inlet makes a difference!
Cheers
Rob
