• 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.

Popping when decelerating

  • Thread starter Thread starter Anonymous
  • Start date Start date
A

Anonymous

Guest
My GS850GL
http://www.thegsresources.com/_scripts/gallerydispwnd.php?RegID=412
is making a popping noise when I decelerate quickly. I am brand new to owning a bike and riding, so I am by no means familiar with the mechanics of a motorcycle, however, I noticed when I was cleaning the bike that the right tailpipe (muffler?) has some small rust holes in it. The bike starts right up and runs great while accelerating and while maintaining any specific speed. It is just when I decelerate a lot at one time that it makes the popping noise. I noticed the spark plug wires are slightly weathered and have a few cracks in them (I want to change the plugs and wires anyway), but I am thinking that the popping is only coming out of the pipe that has the small holes in it. It seems that I notice it on that side of the bike, but I could be wrong about that (wouldn't be the first or the last time for that :lol: ).

Is it possible that the rust holes in the pipe are what is causing the popping? If not, what else could it be? I am puzzled because of how well the bike runs and how easily it starts and I am thinking it couldn't be timing or carb problems.

Thanks for any and all help!!
Mitch
 
Looks like you found your problem, any air leak into the exhaust, even a 'small' one like pin holes, will cause a popping on decel. patch the holes or replace the pipes and it'll most likely stop. :twisted:
 
Get the small holes fixed, but if that doesn't help, your bike might be running too lean.

Good luck
 
Air leaks can cause popping. The holes would have to be up near the headers to do this. Make sure the exhaust gaskets are sealing properly, but do not over tighten them! Running lean on the pilot jets will lead to popping, which is usually made worse by the type of exhause being run (4-1 or louder type). Mine is doing this more than usual due to the need for some tweaking of the pilot circuit and anothe carb balance, but it doe pop a little normally - I like to think it sounds like a REAL superbike!!!
 
a leak at the collector will cause popping too guys...or even later in the system. i think some engines are more prone to pop as well...which could be a sign the engine needs a valve adjustment too. i'm doing mine this weekend with some friends help, so we'll see how the popping is aftewards. it really only pops from 6000+ RPM if i am engine braking.

~Adam
 
Thanks! Any suggestions on what to use?

Thanks! Any suggestions on what to use?

First of all, thanks for the responses to my post! Some great info from all!

I think I will start out trying to repair the holes and see how she does after that. Any suggestions on what I should use for the job?

I will post how it turns out upon completion and if it doesn't help, may need more advice!

I know I am really going to enjoy this site and am so glad I found it!
Thanks again to everyone for taking the time to post your thoughts!!
Mitch
 
You must log in or register to reply here.
Back
Top