Gsx air bleed issue

[bda4130]

Hi guys, I have a 1980 gsx 750 ( new Zealand) I have just been adjusting my air bleed screws... No: 2,3 and 4 are all running a nice brown plug with about 2 and a bit turns on the screws, but no:1 plug is real white, even got to the point of winding the air screw out 5 turns.. Still a white plug!

I have had the carbs off for a clean and replaced air bleed o-rings. Could be a blockage in the carb that's happened since cleaning them, or could it be an air leak or something else??? Any tips on where to start looking would be much appreciated. Cheers, Daniel.

[BassCliff]

Greetings and Salutations!!

Hi Mr. bda4130,

It could be that the carbs have not been cleaned thoroughly enough. The proper way is in the links below. It could also be that the tip from the "idle mixture adjustment" screw has broken off and is stuck. (NOTE: The VM carbs have a separate air screw and fuel screw for the pilot circuit. The CV style carbs, like yours, have a single screw controlling how much pre-mixed "enrichment" gets added to the overall air/fuel mix for starting purposes.) A removal procedure can also be found on my little website.

Anyway, if you very carefully go through all of the information in the links below, you can learn in a few hours what it has taken me years to acquire. Enjoy!

Let me dump a TON if information on you and share some GS lovin'.

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", "Top 15 Tips For GS Happiness", the Carb Cleanup Series, and the Stator Papers. All of these tasks must be addressed in order to have a safe, reliable machine. 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

[Smallfishnz]

Hi how are you getting on with your carbs? I am about to do mine.
Where abouts in NZ are you?

Martin

[bda4130]

Hi, I'm in wellington, managed to find the problem with my carbs, was messing round with air/fuel bleed screw for ages... Turns out it was an air leak problem. The rubber tubes that join the air box to the carbs were slowly working their way off the carbs allowing a small amount of air in, causing it to run lean and erratically... Simple problem that caused a big headache. This is my bike...

[bda4130]

This was it before I molested it....

[keman]

Nice looking bike.

[Suzuki_Don]

I thought you said it was a 750?????

[bda4130]

I thought you said it was a 750?????

It is a 750... Don't let an 1100 decal fool you the plan for next winter(all going well) is to put a 1200 in it, so then the decal will still be wrong.