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WaGuy78

White Bros E Series and Rejetting

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Just got myself a new E Series pipe. I am running 7 plates in it and it seems to be doing ok without rejetting (170 now). It still has a little bog when I crack the throttle and I want to get rid of that.

I was wondering if there was a formula for figuring this out with pipes, or is it just trial and error. I'm not really sure which direction to go with my jetting. I do know that when I put in a few more plates (less backpressure?) my bike wouldn't start at all.

Can anyone offer and suggestions on what to try?

Forgot to add that it is an 05 450...

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Was the bog there before the new pipe? If not, and if your new pipe provides more of an open airflow, then I would guess you need to go richer on the jetting to keep the gas-air mixture the same now that you have more air flowing through.

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