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2012 crf450r

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Just bought a 2012 crf450r it has a FMF Megabomb header, Powercore Q4, K&N filter and FMF Power Programmer. By my plug reading it seems to be a bit lean, does anyone have recommended setting for 0-100ft elevation,this is my first EFI bike so I'm new to this.

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I would have to assume that FMF has decent settings for that programmer for your specific intake, engine, exhaust and fuel configuration. Perhaps they have an updated programming as well, give them a holler...

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Unless your bike is popping like crazy on decel, or stuttering bad on accel, you're fueling is going to be acceptable as is. Once you start trying to make changes without a wideband o2 sensor or a previously tuned map for an identical bike, you can make things worse.

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