Carb mechanic wanted

[chuck hahn]

mike..those that actually have spent time with me and know me thinkm i am avery pleasant guy..But not when i am frustrated and asking a specific question and feel like i am being dsimissed and getting the run around..then yeah i am a total azzhole!!!

[Mike]

mike..those that actually have spent time with me and know me thinkm i am avery pleasant guy..But not when i am frustrated and asking a specific question and feel like i am being dsimissed and getting the run around..then yeah i am a total azzhole!!!

Well at this point, your options are either people giving suggestions based on what they know in their experience, or nothing at all. People are trying to help. Don't look a gift horse in the mouth.

And I have a feeling this forum would be pretty boring if people only said anything that had the exact answer to your exact scenario.

[tkent02]

Tom I did the pilot jet settings from all the way from 1/2 out and then 1/8 adjustmenst out after that till i had gone a full 1 1/4 out... I took these carbs off so many times yesterday that i literally lost count!! And all reasonable patients as well. As far as i can gather from all the posts..and i sicerely do appreciate all of them.. that all this is adding up to at least 2 very major things..first being the BIG BIG discrepancy in the stated stock jets and whats actually in there, second..who knows where the air screws were originally at since i just arbitrarilly reset them to the stated settings over and over again.

Again, the screws are not your problem! Don't worry about them. Get the right jets in there and see how it runs.

[chuck hahn]

Tom i have them orderd.. nothing more can be done today till they get here. I was just asking some questions so that when they do arrive , I got at least an idea as to what to do with them onces the right jets arrive. I also read about taking the airscrews and pilots out and checking the ends..whats that all about? Is that another thing i need to do when i take the carbs off the bike tomorrow? Hey i am asking a lot of really assinine questions as compared to your levels of experience and i am probably making you pull your own hair out too, but i really dont know what to check, what not to check, whats set at what..nuttin nodda. I am really trying to get a grasp on it. I really want to learn it all from top to bottom, in side and out. I just dont know how to form the expression of what i am thinking if i dont know what i dont know..its kind of real desperate and futile feeling on my end. B ut i will eventually getbit done.

[waterman]

Get the right jets in there and see how it runs.

Tom i have them orderd.. nothing more can be done today till they get here. I was just asking some questions so that when they do i got at least an idea as to what to do with them ones the right jets arrive.

For the fuel screw start with 5/8 to 7/8 turn out, the air screw 1 1/2. This will be close enough, as the screw positions have NO EFFECT on the wide open throttle where you are having problems. The air and fuel passages connected to these screws only have airflow through them when the throttle plate is closed or nearly so. There is no setting specified as they are tuned individually on each cylinder at the factory using exhaust analyzers once the engine is running. It is not a critical adjustment, unless you are trying to pass a sniff test, as long as it idles acceptably it's close enough. Again, it has NO EFFECT on normal running with the throttle open, it controls fuel and air only at idle or very very low throttle. The screw position is not your problem.

+2 for Tom. Give yourself a hand and wait until tomorrow. May want to double check float levels to make sure everything is good there.

[chuck hahn]

Thanks for the info about they only effect the carbs at full closed or very evry low throtle. Not one person had ever explained that in the last few days. I was under the understanding that a FUEL SCREW effected the mixture throughout the entire range of throttling. Someone may have but i probably didnt register it cuz i get so upset and rattled by these things..
So heres where i understanding things right now.. The jets that are in now are not the right ones and i am putting the new ones from Z1 in tomorrow. Then I set he pilot to the prescribed 5/8 to 7/8 and then i set the air screws at 1 1/2. At this point they are ready to be put back on and see how it runs then...I think i am grasping it a bit finally. Is there anything else as far as passages or anything parts wise while i have the bowls off? float bodies, float needles anything like that?? point has been taken on float heights already,,thanks.

[SqDancerLynn1]

Taking the mixture screws out ? Sometime when they are messed with people will tighten them too much and the point of the mix screw will break off in the carb...
Weather you have a GS750 or a GS1000 The starting carb settings are the same just different jets. SO the procedure is exactly the same.
I would suggest going back and checking to make sure you have 12 volts on the coils and do a mechanical sync on the carbs. YOU need a baseline/ starting point. Back out the idle adjustment screw all the way, make sure the #3 carb throttle plate is completely closed, adjust if needed. Used the idle screw and adjust the #3 carb throttle plate open about 1/8" (use a drill bit), adjust the other carbs for the same opening. Don't forget to back the idle screw back out to aprox idle setting

[chuck hahn]

Thats what is known as a bench sync..i know how to do that as well. Thanks. I dont get the feeling the ends are broke oof any screws but hey maybe it wouldnt hurt to check. or if anything got sucked in there too..just a thought.

[chuck hahn]

And to Tatu..since others have posted and cleared up my confusion about JETTTINGS and SETTINGS and explained the range of thottle that the pi,ot effect i offer my apology..

[rustybronco]

make sure the clips on the needle are in the correct position.

make sure the needles are the correct ones by examining the part numbers on each needle.

[waterman]

If you want some carb theory that isn't too deep check out this website. Not bad site for general fixes.

http://www.dansmc.com/carbs2.htm

[chuck hahn]

Yes the man at Z1 asked me about the needles and since i hadnt taken then down that far i know i need to verify the number. And as you taught me the standard clip setting is the middle groove.

[sachsaca]

If you want some carb theory that isn't too deep check out this website. Not bad site for general fixes.

http://www.dansmc.com/carbs2.htm

This is a great web site, I read all the stuff I can get my hands on. He is pretty practical

[rustybronco]

Yes the man at Z1 asked me about the needles and since i hadnt taken then down that far i know i need to verify the number. And as you taught me the standard clip setting is the middle groove.

Not all clips are set in the middle position. you need to check.

[chuck hahn]

ooooook...so thats yet another thing i mis understood. and while i am at it i wanna know is there any solvent or whatever to use to get the black soot off these new plugs so i can reuse them to look at till i kinda get a good looking plug? I was thinkk to use a toothbrush to get way down in there with like say some laquer thinner or something..