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Jetting changes needed to swap YZ250F Silencer for WR250F silencer.

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I have a 2002 YZ250f with a Powerbomb Ti header ands the stock pipe with a PMB endcap & quiet insert. The bike makes good power and works perfect with stock jetting.

I also have a WR250f pipe that makes the bike even more quiet which is perfect for when I don't want to attrack attention while riding some trails. The problem is that when I swap to the WR pipe there's some throttle bog or hessitation felt. I'm figuring it's the jetting but have no clue as to what jets should be changed and what # jets I need.

Have any of you used a WR pipe on a 250F?

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