g2 back fire


New Member
at top end lot of extra gas in cyl? what could be causing to back fire when leting off gas it dose it a lot more with the fresh motor rebuild what can i do any ideas???? also took the governar off a long time ago but it didnt back fire as much before as it dose now before rebuild it did once in a while now as soon as you let up it dose please any ideas would be great.. thanks