77 gs750 carb from hell

[Guest]

well ive tried everything and cant just get it tuned right

ive rebuild all 4 cleaned and blew compress air, set floats to 24mm set pilot screw to 1 turn and pilot air to 1-1/4 and I get get the right two running with full choke and petcock in the on position and the other two on the left wont fire unless I plug the intake port and even still they wont stay running and any touch of the throttle it stalls, now only way I can get them running slightly is when full choke and petcock on prime and I can wave the throttle and it will rev up but no choke will die

ive taken apart and sprayed seafoam and compressed air 30+ times still wont work im stumped

[wymple]

Go to the GS Parts and Services section and open the thread on Bill(Chef1366) for carb cleaning and setup. Money well spent, when done it won't be your carbs if still sickly.

[tom203]

Head to this link- do the job thoroughly,or suffer!

http://members.dslextreme.com/users/bikecliff/images/vm_carb_rebuild.pdf

[chuck hahn]

Open the drains on them first to see if the bowls are getting fuel. If number 2..second from left as sitting on the bike..is dry then number 1 will probably also be dry.

Take the bowls off the ones that wont fire and hold the carbs upright and work the floats..seeing that the needles drop and dont hang up. Or that the floats dont hit the gaskets.

Next, recheck the bench syncing..may be that the slides just arent open enough. I usually look for a good 20/1000s or so as the gap at the bottom. Its something simple that wont require you to send them out. I am available most night from around 6 to 9 Oklahoma time. I will PM you my number.

[Big T]

well ive tried everything and cant just get it tuned right


ive taken apart and sprayed seafoam and compressed air 30+ times still wont work im stumped

What you haven't tried is properly cleaning your carbs

Go to Basscliffs site, download the VM tutorial and clean your carbs correctly.

You're just ****ing in the wind until then

Did you read thru the Top 10 Newbie Mistakes thread? I'll bet you can check off every items there

[chuck hahn]

Be sure the tiny hole in the tip of the pilot jets are open too. Very easy to over look them. And Todd, he says he completely rebuilt them..so are we to assume he did them per the tutorial or not?? Only he can answer that for us.

I will reserve comment until that point is clarified. However, in case he did not do them per the tutorial, heres a link. And I have PMed him my number so he can call with any questions and help if needed.

http://members.dslextreme.com/users/bikecliff/images/vm_carb_rebuild.pdf

[chuck hahn]

the service manual..

http://www.mtsac.edu/~cliff/storage/gs/GS750_Service_Manual_early8valve.pdf