• Required reading for all forum users!!!

    Welcome!
    Register to access the full functionality of the GSResources forum. Until you register and activate your account you will not have full forum access, nor will you be able to post or reply to messages.

    A note to new registrants...
    All new forum registrations must be activated via email before you have full access to the forum.

    A Special Note about Email accounts!
    DO NOT SIGN UP USING hotmail, outlook, gmx, sbcglobal, att, bellsouth or email.com. They delete our forum signup emails.

    A note to old forum members...
    I receive numerous requests from people who can no longer log in because their accounts were deleted. As mentioned in the forum FAQ, user accounts are deleted if you haven't logged in for the past 6 months. If you can't log in, then create a new forum account. If you don't get an error message, then check your email account for an activation message. If you get a message stating that the email address is already in use, then your account still exists so follow the instructions in the forum FAQ for resetting your password.

    Have you forgotten your password or have a new email address? Then read the forum FAQ for details on how to reset it.

    Any email requests for "can't log in anymore" problems or "lost my password" problems will be deleted. Read the forum FAQ and follow the instructions there - that's what we have one for...

  • Returning Visitors

    If you are a returning visitor who never received your confirmation email, then odds are your email provider is blockinig emails from our server. The only thing that can be done to get around this is you will have to try creating another forum account using an email address from another domain.

    If you are a returning visitor to the forum and can't log in using your old forum name and password but used to be able to then chances are your account is deleted. Purges of the databases are done regularly. You will have to create a new forum account and you should be all set.

jets for 4-1 vance and hines

  • Thread starter Thread starter ms5490renegade
  • Start date Start date
Hi,

What kind of air filter do you have?


Thank you for your indulgence,

BassCliff
 
And which Vance & Hines? There is quiet one with baffles (about $350) and a 'drag bike' model($220)- no baffles and the megaphone is level with the ground.
 
LarryC said:
And which Vance & Hines? There is quiet one with baffles (about $350) and a 'drag bike' model($220)- no baffles and the megaphone is level with the ground.
Click to expand...

Um I'm going to say the first one since It's not too loud
 
Anyone know? I was thinking of getting a pipe myself to preserve the stock exhaust. Would love to know what jets are needed.
 
On mechanical carbs: move up one to two sizes from stock for just a pipe. With a K&N in box filter you may want to move the needle clip down a notch. With pods you'll need to move somewhere in the 5-7 size range and probably move the clip down two notches. Open the fuel screw to one full out, air screw should be 1.5-1.75 out. Stock pilots should work. This is a ballpark.

Vacuum carbs: for a pipe alone, you may get away with one to two sizes up on the main, maybe shim the needle. Inbox filter or pods buy a DJ kit.
 
Pilots and main jets

Pilots and main jets

I am running 52.5 on pilots and 135 on mains, needle in stock position, spark plugs are light gray, never fouled spark plugs. I have pods and V&H 4 to 1 always open, she runs perfect and 41 mpg. Stock pilot jet is 45 so I am 3 sizes over stock. Running stock pilots while using free flow filter and 4 to 1 exhaust will yield to a lean condition.
Good luck.
 
Im at 3700ft here and in my 80 GS1100 stock motor with that pipe {fiberglass removed} I run 1 size up on the pilots and 115 Mikuni jets {107.5's stock}on the mains with a K&N filter and the airbox top on with dynojet needles 1 up from middle . Top off I can run 117.5's. I arrived at that by experimenting and some help from the smarter guys on here. Your results may vary. Dynojet jets are numbered different then Mikunis. Guys run richer at sea level but this is what works best for me in Montana.
 
The instructions with the Vance & Hines pipe say remove airbox lid, 122.5 mains and 47.5 pilots if that helps you any
 
You must log in or register to reply here.
Back
Top