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02 WR426 Jetting

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I recently purchased a new 02 from the dealer and I opened the airbox and put in a GYT-R baffle. Since doing this I figured it would be best to change the pilot and main to the next size up. I did this but I did nothing to the needle. Since doing this I have had problems starting the bike when it is cold. The last time I actually had to hook up a tow strap and have a CRF230 pull me so I could bump start it. (How humiliating) 😢 I have ordered the JD jet kit, what do you recommend for my setup. I am in Columbus, OH so I would say very low elevation. All help is appreciated.

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Cold starting a Yamaha 4 stroke is difficult with lean idle and starting circuit jetting go down to the dealer and buy a larger starter jet ( choke circuit). 72 starter jet is great for cold weather. 😢

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I have ordered the JD jet kit, what do you recommend for my setup.

Use the kit instructions for setup with the pilot jet you are currently using.

Thanks,

James

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