One thing I have found is that the point setting is critical to the bike running right. The factory manual calls for .012 - .016. I usually set them at .014. This will affect the timing, which is also critical. You may have to play with the gap to get the correct timing, which should be checked on each cylinder. Also, make sure the point cam is in the correct position when you set the points. I donĀ“t know what year your bike is, but I read an article written in 1968 about a road test of a new 350. They had great things to say about the bike, but one complaint was that the bike had a slight hesitation! Hope this helps.