Jump to content

fuel / air screw


Recommended Posts

stock carbs with stock motor with pro circuit pipes k& N pods V-4 reeds billet intake and fuel / air screw was at 1/2 turn out, I turned it to one full turn and it will start still with one kick but at 1.5 turns it will not start well at all.

Does the screws have anything to do with how the motor runs other then starting and idle  ? and being at 1/2 - 1 turn out is this ok or does it look like I need bigger pilots ?

I am not sure what is in it

 

Link to comment
Share on other sites

Leaner than 1/2 turn.....Pilots and air screws feed fuel throughout the entire throttle range but are overrun by the fuel supplied by the needle and main at more than about 1/4 throttle. If tha makes sense.

Link to comment
Share on other sites

  • 2 weeks later...

Rich-in, Lean-out. May want to start around 1 to 1.5 turns out and get it to idle by tweaking the air screw and idle screws back and forth until you find a good idle and good throttle response out of the hole. I had pc pipes and mine had good throttle response at 1 turn out, but everyones bike is different. Check your pilots and make sure they are absolutely clean. If they are patially clogged it will have a high lean idle.

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...
×
×
  • Create New...