Which Jets?

Started by BoisBlancBoy, May 12, 2008, 04:23:05 PM

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BoisBlancBoy

I just ordered my jets today, so hopefully they will be here before the end of the week.

Another quick question, anyone have or know of a picture that depicts each part of the carb that I am going to have to change and adjust?  Which jets, mixture, idle screw etc?

Flynbyu

Quote from: BoisBlancBoy on May 14, 2008, 04:06:00 PM
I just ordered my jets today, so hopefully they will be here before the end of the week.

Another quick question, anyone have or know of a picture that depicts each part of the carb that I am going to have to change and adjust?  Which jets, mixture, idle screw etc?

Page two of the PDF link, Figure B.

http://www.dynojet.com/pdf/Q423.pdf

~Brian
2003 Yamaha Raptor





Yamaha Raptor Forum

BoisBlancBoy

Great!  Thanks again!

BoisBlancBoy

In that picture, is that showing the bottom of the carb with just the bowl off the bottom?

If thats the case, can I do these adjustments without having to take the carb completely off?

Flynbyu

Quote from: BoisBlancBoy on May 14, 2008, 04:17:12 PM
In that picture, is that showing the bottom of the carb with just the bowl off the bottom?

If thats the case, can I do these adjustments without having to take the carb completely off?

Yes.

The bowl screws a re bitch to get off and I recommend changing them to Torx bolts. You can access the bowl without removing the carb, but chances are the screw will strip. OEM screws are crap!

~Brian
2003 Yamaha Raptor





Yamaha Raptor Forum

BoisBlancBoy

If I remember right I had it out a couple years ago cause I had to completely clean my carb cause I got some dirty gas and which ended up clogging some jets.  So hopefully it should be a problem to get out.

Oh, so can I do the adjustments without pulling the whole carb out?

Flynbyu

Quote from: BoisBlancBoy on May 14, 2008, 05:14:50 PM
If I remember right I had it out a couple years ago cause I had to completely clean my carb cause I got some dirty gas and which ended up clogging some jets.  So hopefully it should be a problem to get out.

Oh, so can I do the adjustments without pulling the whole carb out?

Yes.

Loosen the carb at the carb boots, twist the carb clockwise, and access the bottom from the left side of the bike.

~Brian
2003 Yamaha Raptor





Yamaha Raptor Forum

BoisBlancBoy

Awesome.  Unless i missed a trick last time I took the carb out, it was alof of work to get it out.

BoisBlancBoy

On that Dyno Jets link with the carb picture, where is the pilot jet?

Limited660

Middle right smaller one im pretty sure, the top one that is big is the Choke circuit I believe :thumbs:

Flynbyu

Up and to the right of the main jet is th pilot jet.

Factory pilot should be a 22.5 if memory serves me correctly.

~Brian
2003 Yamaha Raptor





Yamaha Raptor Forum