Carburetor spec discrepancy for GT750M models

mfrias2nd · Post by **mfrias2nd** » Mon Jul 08, 2013 4:09 pm

Hi everyone, Just thought I'd contribute because I came across this discrepancy with some specs I've pulled up. In tearing down my carbs on my 1975 M model I noticed the needle was on the 4th down position. I pulled the specs and the following pulled up.

Haynes States 3rd position for M model
Suzuki Carb manual (although specifically states L model) states 3rd position
whatever spec is posted below in image states 4th.

Anyone know the true position for the M model?

mfrias2nd · Post by **mfrias2nd** » Mon Jul 08, 2013 4:43 pm

As you can see this is off the Haynes Manual which shows a Circlip position discrepancy from above. can anyone clarify this?

jabcb · Post by **jabcb** » Mon Jul 08, 2013 5:00 pm

Carb specs are listed in service bulletins. 71-75 specs are in Specification-6. 76 specs are in Specification-8.
76 specs has a footnote about the jet needle change.
See: http://www.ozebook.com/compendium/techb ... %206-9.pdf

mfrias2nd · Post by **mfrias2nd** » Mon Jul 08, 2013 6:42 pm

Thanks for another reference Jabcb... does anyone know about the above image where it states 4DN18-4? This is a richer setting. Would this spec be for any upgrade? So far 3 out of 4 state 3rd pos. I'm curious where this 4th pos comes from?

GT750Battleship · Post by **GT750Battleship** » Mon Jul 08, 2013 6:55 pm

My "A" model happily running on the 4th notch,never tried another setting,only thing I've done is give carby's a good clean,new needle & seats +1 new float, & bought the excellent DVD on the Vacuum Carbs,by Bluesmokebaz on Ebay..

Cheers,
GT750Battleship.

Carburetor spec discrepancy for GT750M models

Carburetor spec discrepancy for GT750M models

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Re: Carburetor spec discrepancy for GT750M models

Re: Carburetor spec discrepancy for GT750M models

Re: Carburetor spec discrepancy for GT750M models