gejones
07-24-2011, 08:10 PM
I replaced rings and gaskets and let grandkids ride for about a hour,not hour straight.we were riding it slow in 1st gear and the engine made a pop sound.Pulled side covers andit had broke timing chain.one of the top timing gear bolts had backedout and popped head off bolt and broke timing chain.We replaced chain with engine in frame. Doubled checked timing its ok.But the pressure relief lever isn't working,if you push it down it just goes back up.Would this keep it from starting.It has good spark and seems to have compression and getting fuel.The compression sounds different when you push starter button.Engine sounds and feels ok.any ideas HELP