• 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.

To the carb king (K.Krause)

  • Thread starter Thread starter feelergaugephil
  • Start date Start date
F

feelergaugephil

Guest
1981 GS1000G 24K.

All standard apart from 4-1 harris pipe (import) 125 main jet and K/N air filter located in the airbox.

I have the air screws (on top) set at 3 turns out, but it has run rich most of it's rebuilt life, I did try lower them down to 2 turns but it wouldn't run right, I also did notice one time that I test rode it without the chrome covers on the airbox, it would not pull over something like 3K.

I just replaced the base/head gaskets and noticed that the head/valves were really sooty/flakey with carbon, which tells me it's running rich, how can I resolve the problem of running rich?????????

I have not ridden it yet, but on 3.5 turns out, it cranked up within 4 secs (rebuild) and I can smell how rich it is, but I'm afraid if I turn them down to 2 turns out it will act up like it did last time.
Any suggestions?
Phil.
 
Just saw this on my way off to work. Sorry for late reply.
If you still need help I'll try to come back later tonight.
Couple questions though.
Do you believe this Harris pipe is flowing better than the stock pipe? What makes you think so?
Has compression been checked and is it acceptable?
Have you done any tests to prove good spark?
Are you sure the carbs are stock? And have you verified the jetting is stock other than the main jet and your mixture screw setting?
If you have the time, do me a favor and do a solid 1/3 to 1/2 throttle position run, chop off, and tell us what the plugs look like. Do they lighten up considerably?
 
Keith, I screwed them all the way down, then 2 out, it runs perfect!!!! i did 50 miles, and the plugs are a nice light brown! weird actually, 2 years ago, it wouldn't run under 3 turns out!
 
feelergaugephil said:
Keith, I screwed them all the way down, then 2 out, it runs perfect!!!! i did 50 miles, and the plugs are a nice light brown! weird actually, 2 years ago, it wouldn't run under 3 turns out!
Click to expand...
Yes, very odd. Especially since you already tested at those settings with poor results before.
The mixture screws are limited in their effect. Mostly cruising around town will be effected by them. I find it kind of hard to believe the overall performance was cured by turning the screws in one additional turn but I hope you're right.
With the brief info you've provided, I have to wonder if you've got an intermittent problem with good spark. That would certainly allow the bike to run poorly and then good again as you describe.

Just one other thing...I appreciate the confidence showed to me when anyone makes a thread directed only for me. However, there are several other members here who know their stuff too and I don't think it's a good idea to limit yourself to just my opinions. You can see that several members looked at your post but wouldn't answer. I almost didn't see it at all.
It's just always best to get everyone involved. I imagine a few members may even get a bit irritated by this. I just noticed another member making a thread asking for me. That's why I had to stop my PM messaging and take my e-mail off because of too many requests and I felt obligated to answer all of them.
Again, I appreciate it but 2 heads (or more) are usually better than 1.:)
 
You must log in or register to reply here.
Back
Top