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03 xr100 jetting

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i bought the bike for my wife awhile ago and she likes the sound of the aftermarket exhausts.

a white brothers r4 exhaust just arrived in the mail....yay!!

i have a K&N filter with the top of the air box drilled out and snorkel out. plenty of air flow available

i run sea level and sometimes at 3000ft. temps around 70-95.

what should i start with as for jetting ?? and from there i will fine tune i just would like to know a starting figure.

thanks guys

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105 main jet.....leave everything else alone. The bike will run like a rapppppped ape! :cry:

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