Jump to content

Sign in to follow this  
whatmore

yamaha mono ty 250

Recommended Posts

hi ....im getting a rebore on my yamaha ty 250 mono could anyone recomend what pistons are available and what modifications if any do i need to do  to make it compatible....Thanks for any replies.

Edited by whatmore

Share this post


Link to post
Share on other sites
 

 You will have to call around yourself to see who has what. The Yamaha Tri Z 250 piston was a pretty close match. Wiseco pistons offer quite a range in over bores.

Share this post


Link to post
Share on other sites
 

YZ250 piston but you need to make mods to the shape of the crown if you want to replicate what the original piston crown looks like. Here's a photo I found on the web that shows what I'm on about

s-l400.jpg

Share this post


Link to post
Share on other sites
 

I remember having a John Shirt 270 conversion / rebore. For me, it was a major improvement in the engine department, a bit more torque and still a nice smooth power delivery. 

Just a thought if it's still available nowadays.

Share this post


Link to post
Share on other sites
 

Piston are rare, I've looked around for one a few years back and found a 3rd os. By the time I received it I had sold the bike. It was expensive ( $200.00 us ).

 

Guy

Share this post


Link to post
Share on other sites
 

Try CTC, Cambridge Trials Centre in the UK, its where i bought my ready to go Wossner pistons a year or so ago.

Top notch quality.

  • Thanks 1

Share this post


Link to post
Share on other sites
 

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
Sign in to follow this  

×
×
  • Create New...