• 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.

550 pipes on a 750??

  • Thread starter Thread starter Helmet Head
  • Start date Start date
H

Helmet Head

Guest
:confused:I have done a search of the threads to see if this has been covered, but wasn't able to conclusively answer my question.

I have what appears to be a 78 GS750, and the pipes are rusted out and full of holes. Time to get replacements. I found a salvage place, and the guy has pipes from a simlar year 550. He's trying to convince me that they will fit, and I am looking to allow myself to be convinced, since they are $100 for both sides, as opposed to the new 4-1 systems, or stock ones, which run 3-4 times that much.
Question is, my pipes from the manifold are good to the connection (not sure of the name of it), and the pipes this guy has a good all the way through. Can it be done? I know I would have to cut the 550 pipes and get someone way more talented than me to weld the two bits together.

Anyone tried this? Thanks.

Bruce.
 
I can't give you any specific measurements, but simple logic would say that the 550 pipes are probably just a bit smaller in diameter, probably spaced a bit closer together, probably a bit shorter from the head down to the lower bend and most likely also a bit shorter all the way to the back.

I understand the desire to conserve finances, but if the pipe physically fits in the space, it will choke down the exhaust and affect the performance of your bike. You sure that's what you really want?

.
 
Last edited:
Helmet Head said:
:confused:I have done a search of the threads to see if this has been covered, but wasn't able to conclusively answer my question.

I have what appears to be a 78 GS750, and the pipes are rusted out and full of holes. Time to get replacements. I found a salvage place, and the guy has pipes from a simlar year 550. He's trying to convince me that they will fit, and I am looking to allow myself to be convinced, since they are $100 for both sides, as opposed to the new 4-1 systems, or stock ones, which run 3-4 times that much.
Question is, my pipes from the manifold are good to the connection (not sure of the name of it), and the pipes this guy has a good all the way through. Can it be done? I know I would have to cut the 550 pipes and get someone way more talented than me to weld the two bits together.

Anyone tried this? Thanks.

Bruce.
Click to expand...
Contact me I may have an extra 750 4 into 1 I'm getting rid of. I think I can stay within your budget too. Less freight to Ontario.
Jon
 
The stroke on the 550 is shorter than on the 750 so the down pipe lengths will be shorter. GS850 pipes are good to go and possibly 1000 as well but not a 100% sure on that last one.
 
Steve said:
I can't give you any specific measurements, but simple logic would say that the 550 pipes are probably just a bit smaller in diameter, probably spaced a bit closer together, probably a bit shorter from the head down to the lower bend and most likely also a bit shorter all the way to the back.

I understand the desire to conserve finances, but if the pipe shysically fits in the space, it will choke down the exhaust and affect the performance of your bike. You sure that's what you really want?

.
Click to expand...

Correct.
As a side note, 850 stock exhaust outlets are smaller than 1000 stock outlets also.
You can actually improve the performance on the 850's with 1000 pipes. ;)

Eric
 
Ah, now there's something i didn't know, along with a multitude of other things.
 
You must log in or register to reply here.
Back
Top