Jump to content

1994 YZ 250


LS1inferno
 Share

Recommended Posts

I have a 94 YZ250 as well. I have the head slightly milled, Weisco piston, stock bore size, and I think I still have Boyensen (sp?) reeds- I cant remember.

For Dumont I have mine jetted at 410 or 420. Ever since I ran that jetting I haven't had any top end issues. My bike came with a 330 :think: and I burned up about 3 top ends before I realized how much fuel you need for duning with a 2 stroke. :laughoff:

Link to comment
Share on other sites

I have a 94 YZ250 as well. I have the head slightly milled, Weisco piston, stock bore size, and I think I still have Boyensen (sp?) reeds- I cant remember.

For Dumont I have mine jetted at 410 or 420. Ever since I ran that jetting I haven't had any top end issues. My bike came with a 330 :lol: and I burned up about 3 top ends before I realized how much fuel you need for duning with a 2 stroke. :beercheers:

Wat piolt are you running and whats you needle position? How much compression are you pushing with the milled head?

Link to comment
Share on other sites

Wat piolt are you running and whats you needle position? How much compression are you pushing with the milled head?

I can't remember what pilot jet or where the needle is. Sorry, its been a while since I have messed with it. I will know soon when I get ready for Coral Pink and jet it for that elevation. I'll let ya know. ;)

Right after I got the motor together it had 180 psi. I had to check it 3 times because I didn't expect it so high. It may be slightly less now after running it a few trips.

It sure does run good as hell though. I heard 94's were teh best year YZ motors. I also heard even McGrath used a 94 head on his newer YZ. :beercheers:

Link to comment
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...
 Share

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • VIP RV

×
×
  • Create New...