• 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.

This sound like a needle position issue to you?

  • Thread starter Thread starter makenzie71
  • Start date Start date
M

makenzie71

Guest
Keeps fouling plugs, burbles a lot, LOTS of black soot in the pipes, less than stellar gas mileage, stumbles and stalls and cruises like she's drunk....but wide open throttle she's king ****. I can't hardly hand on.
 
Well...when the plugs aren't fouled she idles nicely...all be it a little high at times.

Isn't what I described "midrange", Big T? She's a monster wide open, but trying to cruise (1/4~1/2 throttle) she stumbles and bucks.
 
makenzie71 said:
Well...when the plugs aren't fouled she idles nicely...all be it a little high at times.

Isn't what I described "midrange", Big T? She's a monster wide open, but trying to cruise (1/4~1/2 throttle) she stumbles and bucks.
Click to expand...

Pilots. Which carbs?
 
Can you elaborate on pilots? Carburetors are not my strongest area.

The engine is a 1993 Katana 750...whatever carbs came on it stock.
 
Does this bike have typical "choke" operation- i.e., needed for cold start, etc - or will it start happy without it? Maybe the "choke" isn't fully off when you think it is. I've noticed on my bike that if I don't fully turn "choke" off within about two minutes, it will stumble as I accelerate in midrange.
 
makenzie71 said:
Can you elaborate on pilots? Carburetors are not my strongest area.

The engine is a 1993 Katana 750...whatever carbs came on it stock.
Click to expand...
Pilot jets. There is a transition period between the pilot jets and the needle. Then another transition between the needle and the main jets. What you are reporting may be that the mains are O.K. but the pilot jets may be incorrectly sized. It may also be that the pilot jets are clogged. Have you done the full carb cleaning and o-ring replacement yet?
 
I know what the pilots are...I just didn't see the correlation. Aren't the pilots what covers idle and the low end? When she's got good plugs she does the low end stuff just fine...it's all mid.

This winter I'll be pulling the carbs and tearing them all apart and rebuilding. Haven't done it yet.
 
You must log in or register to reply here.
Back
Top