Jump to content

75 DT 250b piston sizes


mickboz80
This post is 3368 days old and we'd rather you create a new post instead of adding to this one. You can't reply in this post.

Recommended Posts

Hello all I'm hoping someone can help me I am trying to identify what size the piston I have pulled out of the DT I am restoring is so I can purchase a new one.

The only markings I can see are 6-34 & 96 7.

Here is picture of old piston, as you can see it has small grove on outer edge and I don't want to re-use.

Please help!

Sent from my iPhone using Tapatalk

Link to comment
Share on other sites

Do you want an ad-free experience? Join today and help support the Yamaha Owners Club.

There is 6-34 just under arrow then 96 7 is stamped about an inch under that, very hard to see on picture.

I am just trying to identify whether standard or no, however, I have order a bore measuring tool off eBay so I can see if piston has been bored.

Sent from my iPhone using Tapatalk

Link to comment
Share on other sites

  • 3 weeks later...

Hi Afool " missed this, Standard is 634.[ 70mm] :jossun: Look at F,A.Q"s to see how to post pictures,

If they"ve been bored, they only have an arrow at front & 25/50/75- or 1.00 at the rear of piston crown, [ that's on N.O.S. pistons,] aftermarket may be different,,

Link to comment
Share on other sites

  • Who's Online (See full list)

    • There are no registered users currently online
  • Recently Browsing

    • No registered users viewing this page.
×
×
  • Create New...