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Jetting ?, PING Burned

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06 DRZ SM. Mods are: 440 big bore, stage 2 hot cams, yosh rs3 full system, valves from Ron Hamp, 3X3 mod, and fcr carb with the following jetting:

200 main air jet

155 main jet

45 pilot jet

100 pilot air jet

EMN needle on clip 3

Fuel screw is 2.5 turns out

Bike seems a little down on power considering the mods. It surges at steady throttle on the highway. When I come to a stop the idle is fairly high, but after a few seconds seems to come down. After is at temp it does not like to run with choke on. I ride at 2000 to 5000 above seal level but most of that riding is at 3500 feet. Any suggestions on jetting?

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After is at temp it does not like to run with choke on.

are you riding with the choke on at all times?

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try turning the idle down as low as the bike will idle consistent when warm.

surge better or worse with head.

Not sure what you mean by "surge better or worse with head"

No I dont ride with the choke, it is just a observation.

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