RM250 rm250 starting issues

Mihylo33 · Mar 22, 2013

Is that the exhaust port on the bottom?

bobkyle2 · Mar 22, 2013

The exhaust port is the one you see there with powervalve

Mihylo33 · Mar 22, 2013

bobkyle2:

Take that cylinder back to the place that sleeved it and stick it up the guys ass.

None of the edges appeared chamferred and the bridge was never relieved. On top of that did you drill your piston for the lubrication hole for proper lubrication and cooling of the bridge?

2smoke · Mar 22, 2013

Mihylo33:
Take that cylinder back to the place that sleeved it and stick it up the guys ass.

None of the edges appeared chamferred and the bridge was never relieved. On top of that did you drill your piston for the lubrication hole for proper lubrication and cooling of the bridge?

It doesnt look like it was drilled. I did that with my 92 RM. After I found out I needed a replate. But I also read the distruction that came with my wiseco kit and it said to do it. So I tried to find somebody smart to ask if it was necessary. Pretty much everybody that I asked, including Mihylo said you dont really have to or need to do it, UNLESS....................... You have an exhaust bridge. I almost did it on my CR but remembered that it doesnt have an exhaust bridge. So not oiling holes were drilled, and 5 hours of riding later its still a monster of a machine. Kyle when you get you stuff fixed correctly, remember drill oiling holes is of the utmost importance.