Just got my a15 running after new rings, bearings etc, its a standard motor with no mods. But it runs really bad, its timed correcty and has good spark. It idels fine but as soon as a you touch the gas it cuts out....like I can only just get it to move and there is no way I could get it out of first gear.
I,ve look for a manifold leak and its getting good fuel to the carb.....my next thing to check is the carb, maybe it has a blocked jet.....any help? thanks Jas