VETRIDER801
PR Member
Hello,
I have a 290cc overbore kit installed in a 2009 yz-250f, with a JE piston
bike had no problems what so ever before, just not fast enough to run a plus classes and I had (professionally installed) a 290cc overbore kit including JE piston
now the bike after you run a holeshot with it and pull up and stop you rev it a couple of times then its putting blue smoke out We took it apart a second time put new valve seals in it (even though they didn't look bad) put new rings in it then a short time later same thing bike runs like there is not a thing wrong with it
im really fustrated with this im afraid of hurting it
any ideas?
I have a 290cc overbore kit installed in a 2009 yz-250f, with a JE piston
bike had no problems what so ever before, just not fast enough to run a plus classes and I had (professionally installed) a 290cc overbore kit including JE piston
now the bike after you run a holeshot with it and pull up and stop you rev it a couple of times then its putting blue smoke out We took it apart a second time put new valve seals in it (even though they didn't look bad) put new rings in it then a short time later same thing bike runs like there is not a thing wrong with it
im really fustrated with this im afraid of hurting it
any ideas?