Jump to content
Sign in to follow this  

TRX piston in my 04 crf450r

Recommended Posts

Its time for a new top end in my 04 450r supermoto. I want to use the trx piston because it has a 3rd ring and help cut down on losing oil to blow by. I've read about people using them in their 06+ bikes but can't find anything about older ones. Its the same diameter but I was wondering if the deck height and wrist pin size were the same

Share this post


Link to post
Share on other sites

If your getting blow by and have gone through that many pistons it sounds like you need a new cylinder or need to get yours plated.

Share this post


Link to post
Share on other sites

I put a trx piston in our 02...works great zero oil consumption

Edited by travis1010

Share this post


Link to post
Share on other sites

I have used 5 J.E. Pistons (single ring) on both an 03 and 08.  I  ball honed or scotchbrited the cylinder each time.  Break in was done under a load with conventional oil.  Then Honda moly HP4.  Never had any noticealbe oil consumption between 5 hr. oil changes. Something else is wrong.  Possibly valve seals?

Share this post


Link to post
Share on other sites

Would be interesting to see,I'm runing trx valves in my 04 450r they wear a lot evenly then the old stock ones and are not as harsh as the stainless ones.holding up fine so far

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×