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fmf fatty and shorty to fmf q sparky. jetting?

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would a silencer change require me to rejet?i got an fmf fatty now with an fmf shorty and was going to get a q sparkarrestor so i can be forestry service complient. think ill need to rejet?

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I didn't see any changes when I put on a spark arrestor in jetting or performance. Just got quieter, I have friends who comment on how nice and quiet I am next to their 4 strokes.

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You should be fine with the same jetting.

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