2.25 petrol not running well

[Alan Drover]

Just read in the post about the Club rally that Wittsend has a working 25D4 for sale. It would be worth contacting  him.

[alex1987]

I thought your distributor was a proper one but if the Doctor says not then it's not. He knows his distributors. I'd look for a proper Lucas 25D4 ensuring that the casting is sound and get the Doctor to rebuild it and fit his Pertronix electronic ignition at the same time. I can't be 100% sure but I'm fairly certain that Chinese distributors are all 45D4's.
What carburettor is fitted? Is that Chinese too?

The carb is a webber.

[Alan Drover]

They can be temperamental sometimes and being smaller in choke size than the Zenith (34mm as opposed to 36mm) they tend to run on the weak side. That's supposed to make them more economical but more throttle has to be used.