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06 yfz450 jetting help

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I need help jetting my 06 yfz 450. Stock jetting is 155 main 42 pilot. I bought the GYT-R jetting kit. My riding elevation is usually between 4500 and 6000'. Usually hot weather 60 to 90 deg. (Nevada high desert) I have the airbox cover removed and spark arrestor out, other than that it is stock. The problem I'm haveing is hard starts, and it bogs a little at low idol. It will also usually die if I push hard on the throttle from an idol. Also this is my first machine so I really don't how fast it should be from mid to top end. Haven't noticed hesistation at all. I would just like to know what the best jetting would be for my setup. Any help would be great. Thanks

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