Maintenance & Technical > KX500 Steel Frame Conversion (SFC)
2003 KX 250 SF Conversion
dave916:
--- Quote from: umberto on September 02, 2015, 07:04:43 AM ---I got the exhaust valve working and was able to fire it up last night. Unfortunately, it feels like it has low compression. I think that my cylinder was more worn that my calipers were showing. I'm going to test it with my handy dandy compression tester, but it looks like I get to tear the motor back down and get the cylinder re-plated. Yay! One day I swear I shall ride this thing!
--- End quote ---
Did u check ring end gap in cylinder?
umberto:
I sent my cylinder to Millennium Technologies and sure enough, it was completely worn out. They are going to sleeve it to 86 mm, then bore it back to 88 mm so I can use my Wossner piston with some new rings and gaskets. Hopefully I will have it back in a few weeks and can finally ride the beast as God intended.
Meanwhile I was able to build a new pipe mount in Light Welding 2, and the instructor was nice enough to weld up the missing silencer mount on the subframe. Here's a pic of the pipe mount. It's made of 3/16" plate with a 1/2" solid steel pipe that I threaded to accept a 6 mm bolt. I braced the post from the side with some 1/8" solid bar for added strength. On the back I welded some more ?/?" stock on to keep the mount from moving around when bolted up (it fits flush against the stock raised pipe mount).
I attached the stock rubber mount to this mount, and it made a lot of difference in the amount of movement in the pipe. I still need to clean up the welds and paint it.
umberto:
Got a box in the UPS delivery today. After I unpacked it, look what I found...
Now if I can just sneak out of here without anyone seeing me...
umberto:
While I was waiting on the cylinder, I got a chance to rebuild the forks and shock. I also replaced the linkage and swingarm bearings, and added new brake pads. The bike is ready to go, now I just need to assemble and re-install the motor.
Of course my son's swim season just began, so I don't have a free weekend to ride the beast until probably Thanksgiving. But:
sandblaster:
Nice!
:-D
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