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Jetting Help after piston and cam install

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05 CRF 250R

I just finished rebuilding my bike with a JE Hi Comp piston/ Hot Cams Stage 1/ and Big Gun Rev Box. I also added a External fuel screw at the same time.

The bike had a JD Jet kit allready installed and ran very strong before the rebuild. I have it all broken in and the bike now has a huge mid to top bog. Any ideas would be appreaciated. Thank you.

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so when you acclerate hard off the corner,the bike revs and responds but gets to mid rpm bogs than goes again?

or just bogs when open the throttle quickly?

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Bogs when you are accelerating going through the gears or coming out of a corner, then goes again.

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JD Kit w/ 180 Main / Red needle 5th clip I think / Quickshot

Would it being cold out that day have that much affect ? I just realized it was a little cold.

Thank you for all your help.

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40 Deg. I also just checked the valves and they were just a little tight, and I am in the process of reshiming.The bike is also taking about 15 kicks to start cold. Before it started 2nd kick.

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I just got it toghether. It started very quick and ran strong around the block. I guess I need to get it on the track and see if it is still bogging. Thank you very much for your help.

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