• 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.

finding air leaks?

  • Thread starter Thread starter Fenixgoon
  • Start date Start date
F

Fenixgoon

Guest
bike is a 1982 GS650G with the CV carbs. i'm pretty sure there's a method that involves spraying something (WD40?) around the airbox boots and listening for changes in the idle. if the idle changes, that indicates a leak.

just wanted to confirm this method before i do some testing. i have brand new boots all around, but have been having trouble getting a good seal. it's almost to the point where i'm ready to just give up and buy a new bike, but i love the GS so much! :( :( :( i took my bike out today to test out my new airbox/boots install, and while i was riding, if i clutched in the engine speed would rise to ~5000rpm. and a standstill, though, the idle was a normal 1000rpm. i can only imagine that's an obvious indicator to air leaks.

any tips for getting a good seal between my airbox and carbs? those boots are a PITA to get on (or maybe i'm not doing something right, hmmm)

if anyone happens to be in the Southern Maryland area and knows how to do this, i'd super appreciate some help.
 
Last edited:
You have new intake boot pipes w/new O-rings? New airbox boots? Where are the pilot screws set? 3 turns open?

WD-40 will show if you have a gross leak, but not a minor one. In my experience spraying stuff to judge air leaks is unreliable.
 
Nessism said:
You have new intake boot pipes w/new O-rings? New airbox boots? Where are the pilot screws set? 3 turns open?

WD-40 will show if you have a gross leak, but not a minor one. In my experience spraying stuff to judge air leaks is unreliable.
Click to expand...

yes, new intake boots w/ o-rings and airbox boots.

by pilot screws do you mean idle mixture adjusters, or do you actually mean the pilot screws?

with the exception of the idle mixture screws and carb sync screws, everything on the inside of the carbs is threaded to lightly seated.
 
These ones...

007_AIR%20SCREW%20LOCATION.jpg
 
Also make sure the ends haven't snapped off in there. I take it the carbs are clean with all new O rings installed?

Check one of the air box boots is not rucked up on the bottom of the inner two leaving an air gap.. That can happen.
 
You must log in or register to reply here.

Similar threads

L
Hanging Idle (I know, but bear with me) and different carbs
2
Replies
20
Views
373
dgates1
dgates1
K
Hanging idle troubleshoot help
Replies
18
Views
464
Naulty
N
cdahl383
GS300L starts and idles but bogs with throttle
Replies
17
Views
314
salty_monk
salty_monk
SamLack99
[1982 GS750T] Pilot Screw Adjustment and Vacuum Sync Confusion...
Replies
10
Views
249
rphillips
R
J
Fuel Leaking From Exhaust
Replies
4
Views
128
KiwiAlfa156
KiwiAlfa156
Back
Top