Honda ATV Forum banner

honda 400ex smoking

9280 Views 8 Replies 6 Participants Last post by  Saber6
should a newly rebuilt eng smoke at all if so for how long
1 - 2 of 9 Posts
well there was only about have a piston left. Bent valves
had to bore .40 over. Replaced valves all new valve train complete top end
its just a little smoke but its enough for me to notice but only run it about 15 min
so if it oil in the pipe that should burn out. Right?
If the ring aren't seated how long should that take 2 hours ?
so after that if it still smokes there is a definate problem. correct
1 - 2 of 9 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.