• 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.

Big improvement with larger pilot jet on GS 1000 with pods

J

John Kat

Forum Sage
I've been going around in circles trying to get my BS 32 CV carbs to run with pods on my GS 1000 XP.
The last issue that was really driving me crazy was a slight stumble coming off idle.
The idle ran perfectly and from 1/8 throttle to full throttle no problem but when I moved the throttle away from idle very smoothly as when you are driving in traffic the engine would hesitate.
Following GSR fellows advice, I tried enrichening the mixture with the idle mixture screw but the problem remained:(
In the end, I reread the very good article from Koolaid_kid about adjusting the idle on CV carbs and discovered that there is a "bypass outlet" just behind the "pilot outlet" that feeds the engine when coming off idle:idea:
When you look at a cut-away of the carb, you can see that the A/F ratio for the bypass outlet is controlled only by the pilot jet:cool:
In no time, I changed the existing size 40 pilot jets for a set of 47.5 jets I had.
I closed the idle mixture screw from 2,5 out to 1,5 turns out and BINGO no stumble anymore.:D
I only wish I had done this before despite the Dynojet kit's advice that the pilot jet doesn't need to be changed...
Who gives out the PhD's for CV carb tuning:rolleyes:
 
The standard setup for gs1100 16v with pods and 4:1pipe is (along with dj kit) to increase the pilot jets from 45 to 47.5.
This seems to apply whether using bs34 or bs36.
With a 4:2:1 pipe I went back to the 45 pilot.
Glad you have it sorted
 
posplayr said:
The standard setup for gs1100 16v with pods and 4:1pipe is (along with dj kit) to increase the pilot jets from 45 to 47.5.
This seems to apply whether using bs34 or bs36.
With a 4:2:1 pipe I went back to the 45 pilot.
Glad you have it sorted
Click to expand...
I almost bought myself an A/F ratio meter like you did to sort it out;)
The issue is always the same: too rich or too lean? When you've never done this in your life it's not easy to diagnose the problem.
I've tuned a turbocharged car also but with a fully digital control unit, it's way easier to go back and forth with a few key strokes while keeping an eye on the AFR meter:)
 
John Kat said:
I almost bought myself an A/F ratio meter like you did to sort it out;)
The issue is always the same: too rich or too lean? When you've never done this in your life it's not easy to diagnose the problem.
I've tuned a turbocharged car also but with a fully digital control unit, it's way easier to go back and forth with a few key strokes while keeping an eye on the AFR meter:)
Click to expand...

The further you get from the standard setups the more you need the AFR meter. It is still worth it if you want to get peak performance. No need to leave it on the bike, but getting it set up helped mine considerably, :)
 
You must log in or register to reply here.
Back
Top