poping farting and droping idle when hot

[frozenfish66]

this is very strange and only started happening in the past week or so.

its a 1987 gs 450l when its cold the bike runs perfect but once it warms up the idle will drop down to the point of killing the bike and it pops and farts like crazy at lower rpm. when i stop at a light i have to hold the throttle open or else i stall.

any ideas? i think the carbs need to be synchronized.

also before i had the problem of the idle going up when warm but that has gone away by it self.

[JEEPRUSTY]

Not gone away it has transmuted perhaps.
Have you cleaned the carburetors?

[Dave8338]

Sounds like you are running rich, now. Problems like a hanging idle, just don't go away. Where do you have the mixture screws set at?

[John Sabol]

GS850 idle speed increase

My 1983 GS850 idle goes up to about 2500RPM once its good and warm. Its not an up-down alternating idle surge. Its a steady gradual increase until its out of hand. Any ideas?

[chef1366]

Do you have an air filter?

[BassCliff]

My 1983 GS850 idle goes up to about 2500RPM once its good and warm. Its not an up-down alternating idle surge. Its a steady gradual increase until its out of hand. Any ideas?

Hi,

So that no one gets confused as to who is offering help to whom, you should start your own thread instead of hijacking someone else's.

It sounds like you have leaks in the air intake system. Tell you what, just CLICK HERE and do everything it says on the maintenance lists. That should get your bike running properly. Take no shortcuts or you will become frustrated with lots of pesky little problems. It's just the "mega-welcome" that everybody gets. Welcome to the forum.

Thank you for your indulgence,

BassCliff

[BassCliff]

Hi Mr. frozenfish66,

I also encourage you to perform the proper initial maintenance on your motorcycle; clean carbs, new intake boots and O-rings, properly maintained air box and air filter, everything on the "mega-welcome" maintenance lists. It all needs to be done and your bike will love you for it. Let's get started.

I just stopped by to welcome you to the forum in my own, special way.

If there's anything you'd like to know about the Suzuki GS model bikes, and most others actually, you've come to the right place. There's a lot of knowledge and experience here in the community. Come on in and let me say "HOoooowwwDY!"....

Here is your very own magical, mystical, mythical, mind-expanding "mega-welcome". Please take notice of the "Top 10 Common Issues", the Carb Rebuild Series, and the Stator Papers. Now let me roll out the welcome mat for you...

Please click here for your mega-welcome, chock full of tips, suggestions, links to vendors, and other information. Then feel free to visit my little BikeCliff website where I've been collecting the wisdom of this generous community. Don't forget, we like pictures! Not you, your bike!

Thanks for joining us. Keep us informed.

Thank you for your indulgence,

BassCliff