Looking for 79 Carb diaphragm

[Cosmo]

Pulled a carb apart yesterday and found a cracked diaphragm. OEM 14940-00 for a 79 xs1100. I would settle for a used one if anyone can help with a source...Thanks, Cos

[TopCatGr58]

Hey Cosmo,

The complete diaphragm/vacuum slide assembly is still available from Yamaha, but rather pricey, over $100 for ONE!!

There are ways to repair it. I can't remember if we have a specific tech tip about it, but there are plenty of threads here, a simple search for "repair diaphragm" will reveal the different ways!

I'm going to copy this thread into the Parts Wanted FORUM so you might get a better reply/offer of parts!

The replacement diaphragms you'll find at partsnmore and MikesXS are for the later 80-81 carbs with larger diameter vacuum slides, so they are not a bolt on choice. There was a recent thread about fitting the ones being sold on Ebay from the UK, and how to fit them onto the slides, still not an easy mod!
T.C.

[stunna]

Cosmo: Have to check, but I might have one.

[ccogswel]

If Stunna doesn't have one I do. I just would llike to have your old one in return.

I never done a repair on a bad diaphragm. Never have one to try it on. This would give me a chance to try.

Good Luck!

[mrutah12]

diaphram

I also have one as well youre welcome to