• 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.

RTV Sealant on the boots?

  • Thread starter Thread starter mortation
  • Start date Start date
M

mortation

Guest
How bad would it be to use RTV sealant on the engine side boots between the boot and the engine? I had L & R for 2 & 3 swapped when I installed new boots and O rings and # 3 was popping. I realized my mistake and swapped em so they are not on the right cylinders but now 2 AND 3 are popping.

It only pops a little at 3k+ rpms when I am OFF the throttle. as soon as I give it a little the popping doesnt happen at all no matter what RPM I am at.

I was thinking about putting a little RTV sealant around the O-Ring and reclamping everything down....

Thoughts?
 
mortation said:
I was thinking about putting a little RTV sealant around the O-Ring and reclamping everything down....

Thoughts?
Click to expand...

If the O-rings and boots are in good shape RTV is not needed. Fix the bike right or you will be back a second time.
 
Nessism said:
If the O-rings and boots are in good shape RTV is not needed. Fix the bike right or you will be back a second time.
Click to expand...

They were all brand new. But I had them on backwards and now swapped em the correct way. Just running out of ideas where this damn popping is coming from :(
 
Do you have the stock exhaust/airbox? Any mods? I assume this is for your 850 no?
 
Nessism said:
Do you have the stock exhaust/airbox? Any mods? I assume this is for your 850 no?
Click to expand...

Its an 83 GS850 GLD it has the stock airbox, OEM air filter, new boots on boths sides of all four carbs.

The exhaust isnt OEM though, its some sort of 4 - 2 w/o crossover.
 
mortation said:
Its an 83 GS850 GLD it has the stock airbox, OEM air filter, new boots on boths sides of all four carbs.

The exhaust isnt OEM though, its some sort of 4 - 2 w/o crossover.
Click to expand...


Sounds like it's a smig lean due to the exhaust. You may want to play with the jetting some - up one size on the pilot maybe?
 
Nessism said:
Sounds like it's a smig lean due to the exhaust. You may want to play with the jetting some - up one size on the pilot maybe?
Click to expand...

I have no idea how to do that and no instructions :( I already have the mixture screw out 2.5 turns. Perhaps I should try three? I think it may already be rich I gotta check my plugs.
 
RTV won't work, either -- it will quickly dissolve in the hot gasoline vapor environment. All the RTV will do is make a mess.

Did you install new Suzuki o-rings? Hardware store o-rings will also break down very quickly in the heat.

You can use Viton o-rings (#128 for 80-83 GS850, #125 for 79 GS850), but you can't use regular buna-n or nitrile o-rings.

Have you sealed the airbox ends?
 
mortation said:
I have no idea how to do that and no instructions :( I already have the mixture screw out 2.5 turns. Perhaps I should try three? I think it may already be rich I gotta check my plugs.
Click to expand...

Checking plugs will only give you a general idea of the mixture condition - not specific to the condition you are interested in.

The mixture screws on my 550 are at 3+ turns right now. I was surprised that they took this many turns but it's fact on my bike anyway. You may as well play around with the adjustment some - it's a very easy adjustment so why not experiment? Regarding pilot jets, you can look in the manual to get the size and then just order the next size up as an experiment. Raising the needles are also an option. There are infinite possibilities in terms of mixture tuning for each particular exhaust/intake combination. Don't be afraid to play around.
 
bwringer said:
RTV won't work, either -- it will quickly dissolve in the hot gasoline vapor environment. All the RTV will do is make a mess.

Did you install new Suzuki o-rings? Hardware store o-rings will also break down very quickly in the heat.

You can use Viton o-rings (#128 for 80-83 GS850, #125 for 79 GS850), but you can't use regular buna-n or nitrile o-rings.

Have you sealed the airbox ends?
Click to expand...

They are brand new OEM O-Rings from Flatout.
 
Nessism said:
Checking plugs will only give you a general idea of the mixture condition - not specific to the condition you are interested in.

The mixture screws on my 550 are at 3+ turns right now. I was surprised that they took this many turns but it's fact on my bike anyway. You may as well play around with the adjustment some - it's a very easy adjustment so why not experiment? Regarding pilot jets, you can look in the manual to get the size and then just order the next size up as an experiment. Raising the needles are also an option. There are infinite possibilities in terms of mixture tuning for each particular exhaust/intake combination. Don't be afraid to play around.
Click to expand...


Perhaps I will pull 2 & 3 out to 3 and see how that goes. I was thinking about cranking all 4 down to 1 or 1.25. I hate to mess around to much. I finally am getting to ride this thing and I dont want to break anything :P
 
It's not clear from your post if the bike ever has run without popping since you own it. If it's always popped, then it is very likely that a leak issue remains somewhere.
Of course, it's also quite possible that the carb jetting/tuning has never been right since you own it.
If it is an air leak somewhere:
Silicone sealant on the boots that connect the airbox to the carbs worked great for my friend's bike, but probably won't work well for long on the boots between carb and engine, for the reasons stated above.
The first thing you need to do is identify the air leak. Unfortunately, this can be a real challenge if it's a very minor leak. As suggested above, an exhaust leak can be the cause of the popping as well. A poorly sealed airbox and/or poorly fitted filter can be cuplrits as well.

By the way, as I've stated in many other posts: It took me WEEKS of riding and tinkering to discover and fix all my air leaks. Each fix made the bike incrementally better.
 
Last edited:
mortation said:
Perhaps I will pull 2 & 3 out to 3 and see how that goes. I was thinking about cranking all 4 down to 1 or 1.25. I hate to mess around to much. I finally am getting to ride this thing and I dont want to break anything :P
Click to expand...

Turning the screws out richens up the mixture which is what you need. Try three turns and see what happens.
 
Mine runs with the screws 3 turns out too... :)

The ethanol & oxygenated Gas seems to have an effect, it runs leaner on California gas than Nevada (filled up in CA Lake Tahoe whilst at Bruce's & got some performance back).

Dan :)
 
Hmmm I made some changes. Better much better but still some popping. Would 3.5 out be to much?

Oh changes:

http://www.thegsresources.com/_forum/showthread.php?t=104537&page=10

1) I pulled the seat and gas tank and checked both sides of my boots for at least the 6th time, everything was tight and correct. I ran the bike. Misted it with water and nothing so I got really coo coo for coco puffs and got the hose. Misted, sprayed, soaked and nothing till I got some on the back of the air box where it got sucked in to the air intake :P

2) I rerouted my vent hoses over the airbox as its supposed instead of under as I had it.

3) I turned the mixture screw for 2 & 3 out to 3 full turns, left 1 & 4 at 2.5 turns out.
 
You must log in or register to reply here.
Back
Top