Carb re-assembly

[Nubian]

Besides the spring and washer, is there an o-ring on the idle mixture screw? And I just found out that the '79 Special and the '81 don't share the same gaskets Gonna be awhile before I ride. if my local shop does have the gaskets will have to order online. I guess meanwhile I can save time by building my synch tool

[bikerphil]

The tiny O ring goes below the washer on the 80-82 carbs.

[Nubian]

Between the washer and spring?

The tiny O ring goes below the washer on the 80-82 carbs.

[motoman]

Yes, the 80-81 carbs with the recessed mix screw also have he needed o-rings. Order of placement on the ilde mix screw is spring,washer,0-ring. Washer keeps spring from tearing up o-ring during rotation of screw. Both washer and o-ring are NA from Yamaha, but the same pieces are available from Suzuki. Can give you the parts numbers if needed. I believe they are also available from georgesfix also. I got both locally as that was the easiest for me.

[Nubian]

That's what I thought I got some from my local napa auto parts but I can't get them seated maybe too thick. Afraid of putting too much pressure on it for the threads to grab.
Would appreciate part #'s.

Yes, the 80-81 carbs with the recessed mix screw also have he needed o-rings. Order of placement on the ilde mix screw is spring,washer,0-ring. Washer keeps spring from tearing up o-ring during rotation of screw. Both washer and o-ring are NA from Yamaha, but the same pieces are available from Suzuki. Can give you the parts numbers if needed. I believe they are also available from georgesfix also. I got both locally as that was the easiest for me.

[Rasputin]

http://www.xs11.com/forum/showthread.php?t=30756

[bikerphil]

Harbor Freight sells a nitrile O ring kit ($4) that will have those tiny O rings for the mixture screws. It also has the ones for the needle seats.

[mjpxs11sh]

parts

i bought mine for my 81SH when 1 of mine walked away. i got it from Mikes xs Part #48-5012. heres the link, go to the bottom of the page. it includes the mixture tower cover u probably wont use. he also has the mix screws. good luck

http://www.mikesxs.net/products-37.html#products

[motoman]

Along with the link Rasputin put up there, here are the part numbers from McMaster-Carr. The washer part# is 99040A316 and 0-ring# is 99040A316.

[Schming]

That's what I thought I got some from my local napa auto parts but I can't get them seated maybe too thick. Afraid of putting too much pressure on it for the threads to grab.
Would appreciate part #'s.

Try some silicone grease lightly slathered on the assembly prior to installing.
HTH

[motoman]

Between the washer and spring?

Nope.........0-ring is the LAST thing that goes on up against the washer. Washer protects o-ring from damage from the spring........

[81xsproject]

Just an FYI, I have the mixture o-rings/washer for $5 for all 4 carbs (MikesXS wants $4.50 ea.). PM me if interested.