coasting enrichment diaphragms

[kwikrider]

I believe that is the proper description, they are part number 3LD-1490H-00-00 according to Yamaha. Anybody have some or know where to get them aftermarket? Cheapest I've seen is 50-70 for new and I need all 4 for my 88 1200. Thanks!

kwik

 

[Fire-medic]

Yamaha OEM for 1988 non-California
part #12

Yamaha 3LD-1490H-00-00 - Diaphragm Set 5 : Ron Ayers

Diaphragm Set 5

3LD-1490H-00-00

Retail Price: $70.99

Your Price: $53.34

 

[[email protected]]

Also known as Air Cutoff Valve
K&L part # 18-2808
Search Ebay.
Plenty for $25 or less to your door.

 

[Fire-medic]

I use K&L carburetor parts, and while I haven't had to use these, from them, I think they likely would work.

 

[CaptainKyle]

K&l work fine it is the only aftermarket carb parts I have had great luck with.

 

[Toolman]

I have good used set (oem) 15.00 plus shipping.

 

[kwikrider]

Thanks for the KL part number. Not sure why nothing came up for me when I looked on eBay.

Toolman, If they’re still soft and not cracking, I’ll take them.

 

[gavicool]

K&l work fine it is the only aftermarket carb parts I have had great luck with.

what about KEYSTER carburator parts?

 

[kwikrider]

^That's what Im looking at now. They say made in USA but the price is more Taiwan. I'm ordering those and some lightly used genuines so I can compare.

 

[gavicool]

^That's what Im looking at now. They say made in USA but the price is more Taiwan. I'm ordering those and some lightly used genuines so I can compare.

what make me "distrust" about the Keyster kits are the gaskets(jet block and choke plumger),are made of "rubber" not as the OEM made of "paper",(thinner) ...maybe somebody has installed the rubber one´s already without a problem....

 

[CaptainKyle]

what about KEYSTER carburator parts?

JUNK DONT DO IT !

 

[one2dmax]

Keyster is JUNK!

 

[gavicool]

...oohhh sh..ttt!!!
well,so,for your experience, you guys recomend K&L carburetor parts ,good to know.
I suspected it ,after I check the jet block/choke plunger gaskets...f..ck!!!!!

 

[dannymax]

Keyster air cut-off diaphragms aren't bad but stay away from their brass parts!

 

[gavicool]

Keyster air cut-off diaphragms aren't bad but stay away from their brass parts!

Thank you for the advise

 

[kwikrider]

Any good alternative sources for the jet block plugs? I see them in the Keister kit

 

[gavicool]

Any good alternative sources for the jet block plugs? I see them in the Keister kit

that was one of the main reason why I got the Keyster kit(very complete kit for the price...I thought..),but The gaskets do not look ok(rubber) and as the colegues,with more experience mention, the brass parts (poor quality),in my case I only use the AF mixture set.
If you decide to buy it,there is something that you have to know about the oring´s...one of them included in the K-941YK kit, packed but unnecessary.
I will post the Japanese explanation about the orings later.

 

[dannymax]

Which o-ring is unnecessary? Do they pack 5 small ones and the large float chamber cover o-ring in that kit?

 

[gavicool]

Which o-ring is unnecessary? Do they pack 5 small ones and the large float chamber cover o-ring in that kit?

*O ring No. 1 in equivalent to #34.
*O ring No. 2 this is 1.9 x 3.8 x 7.6 packed but unnecessary (according to Japan Manufacture ,I consult this issue with Japan)
*O ring No. 3 is equivalent to #41
*O ring No. 4 is equivalent to #11
*O ring No. 5 is equivalent(included) to Mixture screw set # 23

#27 of the Vmax microfiche, This O ring is not packed in the K-941YK kit.

 

[gavicool]

sorry for the duplicate