float level measurement

[Eddie]

Ok, I have put everything back together (ignition,oil pump etc.) I will ride the bike to check the plugs but I noticed that there was some fuel, very little on the l-bracket that holds the carbs together, my question is, when I rebuilt the carbs every book i had conrtadicted the way you measure and how you measure, so i went with what two of the three books said, i flipped the carbs upside down and measured from the gasket to the top of the floats, well last night i saw a youtube video that another person posted on here that said to ionvert the carbs upside down and measure like I did, but then in the video it says you may need to tilt the carbs so that the tang barely touches the needle( which is how I have done on all other carbs but these!!!!) so now im thinking my float level is to high, the only reason i measured how i did is because thats how the 2 books say, they do not say to tilt carbs or for the tang to slightly touch the needle, they say to sit carbs upside down and measure, so what is the right way? also one book says to measure from the bare base of carb and the other says to measure from the gasket? I measured from the gasket with carbs upside down and if the floats are high right now it must be slightly but I wont know till I tear apart again, and when i do I do not want to do this again so does anybody know the correct measurement, and how to measure?

[Coyote]

You need to tilt the carbs so the tang touches the needle but does not compress it. I have always set the floats sans gasket. I measure from that little ridge that bites into the float gasket for added seal.
Another method I use is to take an old but not worn needle. Flush it in thinner and blow dry. Apply a drop super glue where the spring loaded plunger enters the body of the needle. Now you have a solid needle and can work with the carbs upside down. Put the solid needle in place and set your float height. Remove the solid needle and put the new one in place. Repeat for the other 2 carbs.

[Eddie]

Thanks thats what i was thinking( about tilting the carbs) I have never just measured with them upside down but i went by the books instructions and even then i kept questioning it, and now i know!!! now the carbs have to come off again....

[oldjapanesebikes]

I know the Haynes manual has misleading information in it (the diagram on page 87 is wrong for example but the written text in section 7 of the same page is correct) and I don't have a Clymer handy to check it, but there is information available from Suzuki eh ? Check the Specifications bulletins at this link and read the footnotes at the bottom of the carburettor specs pages for your model year. The Suzuki carburettor manual also gives the correct procedure for checking float height at this link (page 12 of the manual for the GT750).

[pearljam724]

You need to tilt the carbs so the tang touches the needle but does not compress it. I have always set the floats sans gasket. I measure from that little ridge that bites into the float gasket for added seal.
Another method I use is to take an old but not worn needle. Flush it in thinner and blow dry. Apply a drop super glue where the spring loaded plunger enters the body of the needle. Now you have a solid needle and can work with the carbs upside down. Put the solid needle in place and set your float height. Remove the solid needle and put the new one in place. Repeat for the other 2 carbs.

That's a neat trick and should make measuring a breeze.

[Eddie]

Thanks for the tips, and yes that is a cool trick you got there, (superglue old needle), I rebuilt the 1st time i rebuilt the carbs i did not have the suzuki carb book, but now i do and i read it last night and it does say to tip the carb but it says to measure without the gasket, I went by the clymer book which says to flip carb upside down and measure from gasket, maybe they think the thickness of the gasket will be like tilting the carb ? not sure but I dont have a haynes book, I have another suzuki book that the p.o. gave me and it also says to turn upside down and measure from gasket, no tilitng or tang just touching the needle, which this was the 1st time I have ever set a carb like that, well I guess you just cant go by what some books say, especially for the gt750, I have found so many different specs and settings in every book it seems like? what the hell? or maybe I have crapy books?

[pearljam724]

Doesn't matter what book, says what. Doesn't matter which way they are turned, etc. As long as you measure with needle not being depressed. I agree that some manuals state measuring off gasket and some suggest not. That's the only discrepancy and it's not a problem to take that into account. One way or the other.