04 yfz 450
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well if your pipe is glowing red that is a serious problem running lean that is so I would go out and buy a few different jets for the pilot and main just to see what works better for you and make it so you make your mixture just about right you can move the needle and it will help you out a little but not much at idle yes the pilot jet helps you and at a certain rpm that is when the main jet is used so go buy a few and give them a try to get your bike right I wish I had a yfz but I don't have one so I am not sure what jets to put in because they might jet lean from the factory like Honda does so if someone can chime in and help out that'd be great
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Originally posted by: azdave
You need the YZF needle with the clip in the 5th position (from top), a 45 pilot jet and at least a 172 main jet. Just did all this on my little brothers 06 and the bike flat rips! Pretty easy to do and the needle is only 10 bucks......
You need the YZF needle with the clip in the 5th position (from top), a 45 pilot jet and at least a 172 main jet. Just did all this on my little brothers 06 and the bike flat rips! Pretty easy to do and the needle is only 10 bucks......