Jetting Help please.....


9 replies to this topic
  • MountainMax

Posted May 01, 2006 - 03:53 PM

#1

I was reading the jetting start guide info here and they say to change the Leak Jet and the starter jet, however at the online Yamaha parts locator don't list the jets as those names so im not sure what ones to order.......

  • dbailey223

Posted May 01, 2006 - 04:18 PM

#2

I found the parts in the online parts manual that I downloaded. I had to know where the jets were in the bike, then follow the little arrows to the right part and part number. I believe that they have been posted in this forum as well--you might get them by a careful search. I believe that Indy knows them like the back of his hand as well.

  • Matty05

Posted May 01, 2006 - 04:26 PM

#3

try sudco or what ever that place is called......

  • odonnks

Posted May 01, 2006 - 05:05 PM

#4

I wouldn't think you'd need to change the start jet, whats pointing you to that?

It its a problem at 1/4 or less throttle go for the leak and pilot jets.

  • Indy_WR450

Posted May 01, 2006 - 05:05 PM

#5

Yamaha Part numbers for all of our jetting options:

MAIN JET
4MX-14943-42-00 .JET, MAIN (#175) AP 1
4MX-14943-40-00 .JET, MAIN (#165) STD 1
4MX-14943-91-00 .JET, MAIN (#168) AP 1
4MX-14943-41-00 .JET, MAIN (#170) AP 1
4MX-14943-92-00 .JET, MAIN (#172) AP 1
4MX-14943-93-00 .JET, MAIN (#178) AP 1
4MX-14943-89-00 .JET, MAIN (#158) AP 1
4MX-14943-39-00 .JET, MAIN (#160) AP 1
4MX-14943-90-00 .JET, MAIN (#162) AP 1
4MX-14943-88-00 .JET, MAIN (#152) AP 1
4MX-14943-38-00 .JET, MAIN (#155) AP 1

PILOT JET
4MX-14948-06-00 .JET, SLOW (#48) AP 1
4MX-14948-04-00 .JET, SLOW (#42) STD 1
4MX-14948-05-00 .JET, SLOW (#45) AP 1
4MX-14948-07-00 .JET, SLOW (#50) AP 1
4MX-14948-01-00 .JET, SLOW (#35) AP 1
4MX-14948-02-00 .JET, SLOW (#38) AP 1
4MX-14948-03-00 .JET, SLOW (#40) AP 1

STARTER JET
3TJ-1494F-13-00 .JET (#65) AP 1
3TJ-1494F-12-00 .JET (#62) AP 1
3TJ-1494F-14-00 .JET (#68) AP 1
3TJ-1494F-15-00 .JET (#70) AP 1
3TJ-1494F-16-00 .JET (#72) STD 1
3TJ-1494F-17-00 .JET (#75) AP 1
3TJ-1494F-20-00 .JET (#82) AP 1
3TJ-1494F-18-00 .JET (#78) AP 1
3TJ-1494F-19-00 .JET (#80) AP 1

LEAK JET
4JT-1494F-19-00 .JET (#80) AP 1
4JT-1494F-15-00 .JET (#70) STD 1
4JT-1494F-23-00 .JET (#90) AP 1
4JT-1494F-03-00 .JET (#40) AP 1
4JT-1494F-07-00 .JET (#50) AP 1
4JT-1494F-11-00 .JET (#60) AP 1
4JT-1494F-27-00 .JET(#100) AP 1

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  • MountainMax

Posted May 01, 2006 - 05:07 PM

#6

What is sudco? and i have not sucessfully found the part numbers by searching, too many posts i guess..... also in the jetting page for one temp is says to use #0 Leak jet, is that possible? or a typo?

  • Indy_WR450

Posted May 01, 2006 - 05:08 PM

#7

To make a zero leak jet just take the stocker and silver solder it shut on the back side. :crazy:

  • Matty05

Posted May 01, 2006 - 05:09 PM

#8

What is sudco? and i have not sucessfully found the part numbers by searching, too many posts i guess..... also in the jetting page for one temp is says to use #0 Leak jet, is that possible? or a typo?

www.sudco.com

#0 leak jet - solder it shut!

Indy just posted the part no's for you! :crazy:

  • MountainMax

Posted May 01, 2006 - 05:11 PM

#9

Thanks for that awesome info, :crazy:

  • kskyles

Posted May 01, 2006 - 06:28 PM

#10

i wish indy was my neighbor.




 
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