3B thanks for your response, yes before the engine was removed, I think a year or so before I changed all the spark plugs and all the plugs wires. it was running good.
I will change the spark plugs and try otherwise I will try to rebuild carburetor, I have a kit. But I don't want touch carburetor before I know all electrical and plugs are good.
I still want to know some more answers based on my description is my distributor working fine or not.
Rgds.,
Ganesh