• 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.

1982 GS1100GL issues

  • Thread starter Thread starter TomsCycle
  • Start date Start date
T

TomsCycle

Guest
I have this 82 gs1100l model that I am having some problems with. The bike starts and runs great. I am a full mechanic but can not figure this one out. I went through the carbs, cleaned, syncd, and reinstalled. The bike starts and runs great. It is as fast as it can be right now. If you are driving it around for a while 50-100 miles out of no where the bike will slowly start to bog down and loose all rpms. There is also no throttle response when this happens. You pull the bike over and let it sit for a bit and give her a little choke and it will fire up. Sometimes the bike will take right off like it never missed a beat, fast as hell again and able to pull a wheelies again but sometimes it will run like crap almost like it is starving for gas until I limp it home. I drilled out the baffles as well thinking that the exhaust might be clogging but no dice. I also changed the electrical system on it(everything that had to do with spark. Any help would be great. Thanks
 
Did you drill out the baffles enough that you affected the backpressure and, therefore, the jetting requirements?

Reducing backpressure will lean out the system, making it run hotter. A hotter engine will start to seize lightly, making it run just like your description. :o

.
 
Did you drill out the baffles enough that you affected the backpressure and, therefore, the jetting requirements? Reducing backpressure will lean out the system, making it run hotter.
Click to expand...

Steve, this is an interesting observation. I'm trying to rejet a KZ with a v/h pipe. I noticed that the engine heats up much quicker and runs much hotter than the GS. Even at 4 turns out with stock pilots, its still a bit lean. I'm going to try a larger pilot jet.

Would the pipe have an effect on all the jets?

I have not ridden it yet so can't tell is mains and secondary mains are where they need to be.
 
I don't have a whole lot of experience rejetting for pipes and/or pods, but I would suspect (guess) that a pipe would affect the entire range. Of course, at low throttle openings, even a very restricted muffler will flow enough to not matter much, but will really hamper higher flow rates. On the other hand, a freer-flowing pipe will not make as much difference at low flow, but flow a LOT better at wide-open settings.

Turning out the pilots to 4 turns is probably approaching their limit of adjustability. At that point, you might want to consider going up one size on the pilot jets, but only after making sure you have the correct main jet installed. If the KZs behave like the GSs, with just a pipe, you will want to go up 2 or 3 sizes on the mains and possibly raise the needles, too. If you have pods on there, too, you will want to go up 5 or 6 sizes on the mains and definitely raise the needles. If you want to make the process easier, consider getting a kit from DynoJet. If you have just the V&H pipe, a Stage 1 will do. If you also have pods, get the Stage 3 kit.

.
 
If you want to make the process easier, consider getting a kit from DynoJet. If you have just the V&H pipe, a Stage 1 will do. If you also have pods, get the Stage 3 kit.
Click to expand...

If this were a GS or KZ which has mikuni carbs, I would get the dynojet. I've heard less than favorable results with the dynojet kits in the Keihin CV34 carbs.
I'm going to see the results I have with swapping jets and raising the needles.
Carb tuning is so much fun :rolleyes:
 
almarconi said:
If this were a GS or KZ which has mikuni carbs, I would get the dynojet. I've heard less than favorable results with the dynojet kits in the Keihin CV34 carbs.
I'm going to see the results I have with swapping jets and raising the needles.
Carb tuning is so much fun :rolleyes:
Click to expand...
When dealing with CV carbs, no matter the make, its best to work from the Main back. Because, in the CV set ups, the pilot actually draws thru the main. If the main is too small, the pilot will starve. Check out the tuning guide on Factory Pro's site, it was VERY helpfull to me.
 
TomsCycle said:
I have this 82 gs1100l model that I am having some problems with. The bike starts and runs great. I am a full mechanic but can not figure this one out. I went through the carbs, cleaned, syncd, and reinstalled. The bike starts and runs great. It is as fast as it can be right now. If you are driving it around for a while 50-100 miles out of no where the bike will slowly start to bog down and loose all rpms. There is also no throttle response when this happens. You pull the bike over and let it sit for a bit and give her a little choke and it will fire up. Sometimes the bike will take right off like it never missed a beat, fast as hell again and able to pull a wheelies again but sometimes it will run like crap almost like it is starving for gas until I limp it home. I drilled out the baffles as well thinking that the exhaust might be clogging but no dice. I also changed the electrical system on it(everything that had to do with spark. Any help would be great. Thanks
Click to expand...
Check the petcock.
 
TomsCycle said:
I also changed the electrical system on it(everything that had to do with spark.
Click to expand...


It's probably fuel, but I wouldn't assume anything. Did you install a Dyna system, new OEM components, or used but presumed good components? Carry around an extra plug and check spark the next time it happens.
 
You must log in or register to reply here.
Back
Top