• 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.

mixture screw busted-how to get it out please?

  • Thread starter Thread starter marcovandevelde
  • Start date Start date
M

marcovandevelde

Guest
Hi guys, Unfortunately I have destroyed the groove in one of the air mixture screws of my 34 cv's off my 1100 kat :oops: . I need to adjust it as it idles far too rich now with pods and stage 3. I've separated it from the other carbs, and removed as much parts as I could. Can I heat it, or does anyone have another suggestion? PLEASE advise :( .
 
There's been a lot of methods tried on this site. Heat guns, E-Z outs...
Cutting a new groove into the screw is the latest method, but that member also cut into the carb body with his dremel. Some members with a lot of patience and luck, have completely drilled out the screw. Risky.
Since you have the carb off and easy access...if you have a small enough drill bit, try drilling a couple of holes into the screw far enough apart to match the width of the screwdriver blade you plan to use. Then drill more holes between these two to remove everything. Make sure the bit you use also closely matches the thickness of your screwdriver tip so you have a good fit. An 1/8" deep groove will probably be good, maybe a hair deeper?
If all goes well, I would then turn the screw IN first until lightly seated and clean up the threads as best you can. Then I would back the screw out to where you want it. Just make the new groove right the first time, or you'll most likely be looking for a new carb body.
If you pay attention and "connect" the drilled holes just right, it's easy to make a new groove.
 
By the way, is it possible you could post a couple of pic's of your seat?
I think I want to copy that design/shape for my bike. I want to be able to have good enough shots that a shop can copy from the photo. Maybe a side shot or two and one of the top? Greatly appreciated if you can.
 
Worked it out!

Worked it out!

Hi Keith,
Thanks for your response. I drilled the holes like you suggested, and then hit a small screwdriver in with a small hammer. I was able to get it out a long way, before the head snapped in half. Did it again, and out it came. I will send you some pictures of the seat, I got a new digital camera last week so I'm able to make close-up shots (3cm. close). I wil sent two different needle shots, as I retreived a needle from a 32 mm GS850 carb that is different in detail.

Thanks again, greetz Marco.
 
seat?

seat?

Hi again Keith, I suddenly realise you weren't talking about the needle seat but the seat on the bike. This pic is not my bike I have to admit, but I do have some other pictures of it that give a good view on the seat. Like I said I got a digital camera last week so now I can fit in a picture of my bike, which looks very similar but is blue and white like the Wes Cooley GS thou. I have a Guiliari seat on, want pictures of that too?

Marco.
 
I'd appreciate any pic's you can post. :)
Glad you got the screw out. I hope you have another one.
I did'nt mean for you to drill the new notch and then hit the screwdriver blade into it. That probably stressed the screw even more. I just meant to make a new notch that would fit your blade well. And from your description, you moved the screw out instead of in first and cleaning up the threads. But as long as it worked, I'll let others know about this method. Nobody has posted trying to remove screws this way.
 
mixture screw

mixture screw

Hi Keith,
I did screw it in first to clean the thread a little, but I didnt want it to stay in there in the shape it was in now. When you have drilled the holes, it doesn't take much force to tap the screwdriver in, there are only small bridges left. I do have some needles from a 32 mm cv mikuni that look very similar, but think I'm going to clean the thread first if I can find a suitable cutter.

You'll find the pictures in the mail shortly.

Greetings, Marco.
 
Make sure the new screw is the same length and tip diameter or you'll never be able to tune it right. (But you probably know that.) :)
 
You must log in or register to reply here.
Back
Top