I have an old Victa VC Sports Series 70 Mark 3 160cc two-stroke. I've just rebuilt the top of the engine with new rings, gaskets, spark plug and gave it a good clean inside and out. But I'm still having the same problem as before I did the work on it. It will start, but runs slow and rough, and eventually stalls. No matter what position the throttle is at, it runs the same. Spark seems good, the carby has been cleaned and appears to function properly, and compression is very good, much better than it was. I'm a bit at a loss as to what else could be wrong with it? Any Ideas?
