Jump to content

Backfire Through Intake Of Front And Rear Carb At 3.5 Turns Clockwise


jalexquijano

Recommended Posts

Installed long needle valve and seat in front bowl and short in rear carb bowl, set the gap to .55 inches and tuned it to 2.5 turns clockwise. Engine stumble and falls. Increased to 3.5 turns clockwise and it backfires through intake. Could one of the neddle and seat fastened at the bowls be damaged?? This is not normal. My electric pump is brand new and is measuring 3 psi.

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.
Note: Your post will require moderator approval before it will be visible.

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.

×
×
  • Create New...