jlhughes750
03-19-2005, 08:32 PM
well i tore down the 400ex today,(the wifes quad):rolleyes:
Its an 02 and its real clean...it has been ridin and raced hard a few times(always an extra quad)....its always had a clean filter and oil, and always ran a stock pipe...... I used it run 1-2 times a week out back while the YFZ was being prepped for the floowing weeks races.. It was also raced in several GNCC races in the stock class.. Got me a top 10 overall in the AM race in NC a few years back...Then a 5th at Rausch GNCC 2 years ago!!!!!! She's been a great quad, always there and able to be depended on when the R of YFZ was torn down!!
Well:D I had her out 2 months ago in the snowy coal pits of Hazelton Pa. We were running hot laps on a little mx track when it locked up:eek2: ......done would not even turn over?? I noticed oil on the side cover and upon further inspection we saw the drain plug had come out!!!! After it cooled we fashioned a new drain plug from some stuff on the ground and ran back to camp for some oil!!:chinese: ..............well it turned over and ran fine!!!!!!!!!!! it did make a substantial amount of noise before it started runnin good???
So i tore it down today...I new before this last ride that it was due for a top end!!! All i found was a ring out of place that scored the wall and tore up the piston!!!! great no seriuos damage....
TO THE POINT....since its my practice bike and I like my neihbors, I want to keep the stock pipe on!!!!!!!!
Heres what i think, Whats everyone else think....
fresh bore....slightly higher comp. piston and get the head/valves done real good???
Its an 02 and its real clean...it has been ridin and raced hard a few times(always an extra quad)....its always had a clean filter and oil, and always ran a stock pipe...... I used it run 1-2 times a week out back while the YFZ was being prepped for the floowing weeks races.. It was also raced in several GNCC races in the stock class.. Got me a top 10 overall in the AM race in NC a few years back...Then a 5th at Rausch GNCC 2 years ago!!!!!! She's been a great quad, always there and able to be depended on when the R of YFZ was torn down!!
Well:D I had her out 2 months ago in the snowy coal pits of Hazelton Pa. We were running hot laps on a little mx track when it locked up:eek2: ......done would not even turn over?? I noticed oil on the side cover and upon further inspection we saw the drain plug had come out!!!! After it cooled we fashioned a new drain plug from some stuff on the ground and ran back to camp for some oil!!:chinese: ..............well it turned over and ran fine!!!!!!!!!!! it did make a substantial amount of noise before it started runnin good???
So i tore it down today...I new before this last ride that it was due for a top end!!! All i found was a ring out of place that scored the wall and tore up the piston!!!! great no seriuos damage....
TO THE POINT....since its my practice bike and I like my neihbors, I want to keep the stock pipe on!!!!!!!!
Heres what i think, Whats everyone else think....
fresh bore....slightly higher comp. piston and get the head/valves done real good???