Running problem petrol engine

Hi Guys, I have a technical question that I hope you can help me with. I have re-assembled my engine, new valves etc. Runs OK but vibrates quite a bit and hunts at low revs. Could this be a coil/condenser problem if so, are they standard specification? Any help would be appreciated.



We think the problem may be the carburetor. We have had a number of old engines with a similar problem. The fact is that a carburetor wears out. We recommend that you buy a new type Dellorto, which we rebuild for your type of engine.