Maintenance intervals

2 replies to this topic
  • MJC476

Posted November 17, 2006 - 04:25 PM


I know this has been asked a heap of different ways before, but.... I would like to know how long (in hours) you should run between replacing/rebuilding the following parts without doing un-necessary work or pushing the use by date too far.

Piston Rings
Piston (& rings)
cam chain (& bottom sprocket?)
split cases & check/repair bottom end & gearbox

There is enough info on valve monitoring adjusting out there, but any other component you may think is important to replace regularly.


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  • grayracer513

Posted November 17, 2006 - 04:47 PM


It's tough to guess at the hours, but I'll guess that I put on about 75-100 per year. But only about a third is racing. The rest is hard recreational riding.

In that environment, a new cam chain annually is about right. You do not want to replace the bottom sprocket; it's cut directly on the crank. You can figure out what that means, right?

As to the rest, I have to say, I don't know. My '03 has had nothing more than oil changes and two cam chains since it was new. Original rings, original piston, never a valve adjustment. I'll say that it might be a good idea to re-ring it soon.

  • MJC476

Posted November 18, 2006 - 06:51 PM


Thanks Gray,
A cam chain every 100 hours & might as well wack a set of rings out of the spares kit in at the same time. That won't be too taxing on the wallet or time.

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