HRC piston, cam and timing chain

3 replies to this topic
  • nakedtls

Posted April 22, 2002 - 03:21 PM


Does the cylinder have to be bored or honed out? I know it sounds like a stupid question but I don't know. Trying to get my budget together for my supermotard.

  • mr660

Posted April 22, 2002 - 06:53 PM


Depends on the size piston you order(0.030,0.040 etc.) Going 0.030 over you will have to bore the cylinder.

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • Craig_Mitchell

Posted April 22, 2002 - 07:35 PM


I will assume ( from the title of this thread )
that you are asking about installing the HRC
piston&cam kit into an xr650r.

The answer to the question is then, no honing
or reboring is needed.

I did mine last summer.

cheers, Craig ( U.K. )

  • quickbrit2

Posted April 23, 2002 - 02:45 AM


Hey Craig, what was you final output figure. Did you ever Dyno it?


Originally posted by Craig Mitchell:

I did mine last summer.

cheers, Craig ( U.K. )

Related Content


Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.