Maintenance & Technical > KX500 Steel Frame Conversion (SFC)
2001 RM250/ 1994 KX500 conversion. The "Kawasuki RM500"
mikectanker:
Blew up my ported cylinder with the steel sleeve. It siezed.I'm not sure if it was bored correctly
For the forged wiseco piston.... anyhow I put my stock cylinder on with a pro x piston.
Doing a little break in today.
The 14/49 gearing and adding Alward's kips bolt mod are working fing awesome!
Going for a woods ride today and can't find the gopro. Should have a video the next day I ride.
My rear hub is toasted. Had to torch a sprocket bolt out. The whole wheel is in bad shape like the whole chassis was. 2 owners ago the RM was owned by a guy who tightened the cap out of everything. Except the spokes which never saw a wrench.
Thinking about warp9 wheels with green hubs and rims, silver spokes and nipples
umberto:
That stinks about your cylinder. It's lucky that you had the stock cylinder to put back on. When I was having my cylinder sleeved, Millennium told me that they could also plate sleeves after repairing any damage. It might be something to consider on down the road. If you do get it replated, I would recommend contacting Sandblaster or Alward25 for a Wossner piston to send along with it. The pistons are as nice as everyone says they are, and they are not expensive when compared to the other forged pistons (within a few dollars).
Can't wait to see your ride video.
Foxx4Beaver:
--- Quote from: mikectanker on March 13, 2016, 04:48:43 AM ---Blew up my ported cylinder with the steel sleeve. It siezed.I'm not sure if it was bored correctly
For the forged wiseco piston....
--- End quote ---
that sucks...been there before.
just curious...did you check to see if the sleeve was sticking above the cylinder?...all it takes is a couple thousands, and the head gasket won't seal....which allows coolant to leak into the cylinder, basically steam cleaning the cylinder walls. I had this happen to a KX250 several years ago that I had sleeved...it never seized, but I was using coolant steadily for a few rides, and it tore up my top end pretty good.
The other thing that crossed my mind was, did you check the piston to cylinder clearances before you put it together?
Post some pics of the piston and cylinder if you get a chance.
mikectanker:
The strangest thing was that the top end was coated with grease on the dome and top of the piston. I've never seen that before. I didn't check the clearances but the next guy who touches my cylinder will also be selling me the piston.
I've heard that the steel sleeves don't hold up as well to hard riding as a stock cylinder wall would but idk..
I'm just glad I got to ride some muddy trails around home and the bike worked great.
I Need to get to the track and test the suspension better.
Leak jet on the 250f is plugged so the 500s prob going to the track first.
Fertilizer hauling season is starting to get balls to the wall so I'm not sure when I'll ride again
Foxx4Beaver:
grease could've come from the air filter to boot seal...sucked through, if an over abundance was used...not sure why else there'd be grease in there.
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