Just a update, I have changed ht leads around on the distributor cap and found the tank filter was blocked. Petrol Wasn’t running at a flow.cleaned out tank and fuel tap reassembled and she’s purring along now ! 😀 many thanks for the replies
Thank you for some information David I will check the valve tolerances next time I’m down the shed. I’ve found some information on the web does 0.006 sound about right for inlet and outlet clearances? Many thanks