• 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.

Coils

  • Thread starter Thread starter saaz
  • Start date Start date
S

saaz

Guest
This is just a comment rather than a question. I just replaced my 20 year old coils (they were second hand Kawa ones back when I put them in..another story!) with 92 GSXR 750 ones. Before this I had idle problems, inconsistent results from tuning chnages. What a difference! Still have a needle adjustment problem, but now the bike starts before I hit the starter and idles like it has not done for a few years. The coils were going bad, but the electronic ignition was making up for it a bit, and it takes a bit to stop a GS from working..the plugs were fouling, etc etc etc.

Of course I have been fiddling with the tuning before changing the coils....now if I had changed the coils earlier like I was going to before retuning....

Live and learn....
 
Re: Coils

saaz said:
This is just a comment rather than a question. I just replaced my 20 year old coils (they were second hand Kawa ones back when I put them in..another story!) with 92 GSXR 750 ones. Before this I had idle problems, inconsistent results from tuning chnages. What a difference! Still have a needle adjustment problem, but now the bike starts before I hit the starter and idles like it has not done for a few years. The coils were going bad, but the electronic ignition was making up for it a bit, and it takes a bit to stop a GS from working..the plugs were fouling, etc etc etc.

Of course I have been fiddling with the tuning before changing the coils....now if I had changed the coils earlier like I was going to before retuning....

Live and learn....
Click to expand...
What is your "needle adjustment problem"?
 
The needle problem is it is running a little rich on 1/3 to 2/3 throttle hard open. Not a problem in normal use! Just running a little rich down low as plugs a bit dark, so lowering needle should get it running fine.

I havent had to adjust the carbs in 19 years, so this is my penance!!
 
saaz said:
The needle problem is it is running a little rich on 1/3 to 2/3 throttle hard open. Not a problem in normal use! Just running a little rich down low as plugs a bit dark, so lowering needle should get it running fine.

I havent had to adjust the carbs in 19 years, so this is my penance!!
Click to expand...
If you have'nt adjusted the carbs for 19 years and it was running fine until recently, then the only way the richness is related to the needles is if they've all worn out at the same time. Possible but not likely. If so, you would have to replace them.
I would first try adjusting the side air screws for the highest rpm at normal operating temp' to help the fuel atomize correctly. Then check the float levels. After all those years, the fuel levels may be too high. Then check the ignition timing and be sure of good spark. Then a carb synch'.
 
I probably forget to mention in this thread that I replaced the carbs with some other Kawa 28mm carbs as the original Kawa 28mm carbs were a bit worn. I have not adjusted the carbs from standard apart from idle setting and putting in the right size mains. Last time I did this I had to raise the needles, but as fuel has changed since the 80s a lowering of the needles seems likely..high density unleaded and all.

The problem only occurs when going highly illegal to go to jail speeds, so I am not too worried! The main jet is ok....so I hear as off course I have not tried it on the road :)
 
You must log in or register to reply here.
Back
Top