HELP, Where can I buy a pilot Jet ????

5 replies to this topic

Posted July 19, 2001 - 07:47 AM


Hello, I need some help. I need to get some leaner pilot jets ( 40,38 ) for my 01' YZ 426. Since the main jet is the same as the two stroke version from my old KX 250's carb, I figured that the pilot would be the same also. My dealer tells me that it's not, and replacements are $12.50 from Yamaha.

However, he was calling it a "slow jet" where the manual calls it a pilot jet. I'm not sure I trust the dealer to order the right part, and I need it with in one week for a trip to Colorado. Plus sometimes Yamaha takes a while to send parts to the dealer.

Anybody know where you can get one other than through Yamaha? Is it possible to order directly from Keihin???

Thanks for your help.

  • jbird

Posted July 19, 2001 - 07:59 AM


You can try
I've talked to them on the phone about parts for the FCR carb and should have the jets you need. The pilot jets are diff. from a 2 stroke.

01 YZ426F, 99 YZ400F, 86 XR250, 76 RD400, 71
Heavily Modified Z50

  • jbird

Posted July 19, 2001 - 08:16 AM


I just tried the link and it looks like their site is down but it was working yesterday.

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Posted July 19, 2001 - 08:44 AM


Actually, I just tried a place called, and they had them for $3.50 each, and they had the ones I needed in stock.
Thanks for the other site however.

  • Hick

Posted July 19, 2001 - 02:49 PM


That’s one more dealer who is a f***ing idiot. Is anybody keeping track of this?

Yes, the pilot is the same as a two stroke (PWK) Keihin carb.

Do me a favor and go verbally abuse your moronic dealer on my behalf.

In his defense, the slant FCR does have a different pilot, but the Yamaha only Flat CR used since ’00 does not. He truly should have known.

BTW “slow jet” and “pilot jet” are interchangeable terms as far as I know.


Posted July 20, 2001 - 01:30 PM


Thanks Hick, I'll go cast some aspersions toward my dealer right away. The guy at sudco also thought the pilot was different from the 2 stroke model. I thought that "slow jet" and "pilot jet" were the same, but my manual said pilot jet and I didn't want the wrong part coming 2 days before I leave for Colorado. Out of 4 dealers that I talked to, only 1 knew what gasket I was talking about when I said I needed a new one that goes between the header and the silencer. Oh well, what are you going to do.

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