Jump to content


Tx311 Carb spec

Recommended Posts

Guys, just acquired a tx311 , restoration  project, but noticed it has a 25mm dellorto, is that standard or a misfit from previous owner?



Share this post

Link to post
Share on other sites


It should have been a Dell'orto model:

Type: PHBH 26 BS

main jet: 88

needle jet: BN266

needle: X5, 2nd notch,

idle jet: 48mm

Gap at the slide: 4mm,

gas valve is normally: 200

and choke us normally: 65

For first TX311 model from 1986,

taken from German Trialsport Magazin, issue 120, March 1986.

  • 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.

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.


  • Create New...