Maintenance & Technical > KX500 Original

Do I need to hone my cylinder?

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medicman:
My cylinder looks good, still has crosshatch marks, no scoring.Its a steel sleve, should i hone before new piston?

Johnniespeed:
 If that was my bike, I would buy a new cylinder, so that I could have an aluminum bore with nikasil on it.
  I think there are posts concerning sleeve problems. But someone must be able to get a steel sleeve to work,at least for a while anyway.
  Hope you are up and running soon.

medicman:
Yea eventuly thats what iam gonna do, full on rebuild with new cylinder. But for now i need to go riding and it worked great with the steel sleeve. I gotta save 550$ for a new cylinder.

hughes:

--- Quote from: medicman on June 04, 2009, 02:09:30 PM ---My cylinder looks good, still has crosshatch marks, no scoring.Its a steel sleve, should i hone before new piston?

--- End quote ---

Do you have a brown oil glaze look in the cylinder walls? If so then a ball hone will remove the glazing. Freshin' up the cross hatch is never a bad idea. Real easy to perform.

Hillclimb#42:
 I think it would come down to a micrometer, too. The first thing that happens, when I take my cylinder in, is they mic the whole cylinder. Also the piston measurement is so many thousands of clearance to the cylinder, and that measurement is different for steel sleeve, than from nikasil. Tighter tolerances with stock.
  If I know there is not much time on a cylinder, I also visually inspect for wear. It's still sketchy, on what new rings will do to the cylinder, though, but I say "Slap it in there" If it wears out after this season, you still got your money's worth, and you plan on getting a new cylinder anyway. you can always buy an extra base gasket and check piston and cylinder after break-in and redo cross-hatching, if you get a smooth area going.
  how did the piston and rings look?

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