• 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.

1980 Suzuki GS1000E - Help Determining Needle Jet Size

  • Thread starter Thread starter Phaedrus
  • Start date Start date
The CV carb is designed to operate with the dead air volume the airbox and connector tubes provide. There is a wider range of jetting that they will work just fine with if fitted with one. Pods do not provide this and turbulence will interfere with the slide operation.

Yeah, keep telling yourself that & come back when you have jetted over 500 bikes like I have. Again, I have done this LOADS of times, STILL do it currently & you have NO idea what you are talking about.
Ray.
 
it's all in the needle shape aka purchase a jet kit.
if CV's would not function properly and have no HP advantage... dynojet would have been out of business back in the 80's.
 
I have a 1980 GS1000G. Wiseco 1085 Pistons, Freshly rebuilt 2 valve head with stock cams, V&H 4into1, Pods, Dyna S, Accel Coils,
I have fully R&Rd BS34s on it that I'm starting to tune on. I currently have 40 Pilots, 125 Mains and stock needles. I triple checked float levels at 22.5mm and diaphragm integrity. No vacuum leaks. The bike runs like garbage at this point.
I'm getting a lot of help from this series of posts. Thanks for doing all this research for me:cool:. Has the fat lady started singing? What were your final jets and needle settings?
 
Oh, boy did she sing... Had a blast tearing up the CA back roads with her for a season. Ironically, I literally just sold her this morning...

Your jets are wayyyy too lean. These things are thirsty. Final settings were 45 pilots, 2.5-3 turns out on the air scrwws, 130 mains (I think). Dynojet jet needle, clipped 3 notches up from the bottom with 2-3 washers on top.

Caveat is that I ended up getting a clean set of gs1100 cards (I think bs36s??). The oem carbs were either faulty or just a little bit to rich. I'd try my jet setup with your carbs and see how close you are.
 
Thanks for the reply! Those numbers are right where I was headed. I'm sorry to hear you sold it, we're fairly close; I live near Gilroy. Now my stock needles don't have the grooves for clips. I will probably try to get the Dynojet ones...
 
dynojet kits are fantastic. I get great results with them and cant say enough good about them.

1085cc bs34 = 45 might work with the dj needles but I think 47.5 pilots will cover the fuel flow you want for low to mid transition on a stock needle.

don't be afraid of jumping to - 137.5~142.5 mains.
 
That dog'll hunt. So is there a particular needle that seems to work best? My needles don't have grooves for the C-clip. I don't really understand the numbering system for the needles...
 
Back
Top