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Yoshimura exhaust question

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What are you guys doing when you remove the spark arrestor screen, are you putting the ring back in or leaving it out.

Chet

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the yosh makes more power in the top with the ring in i have made custom rings down as small a.s 1&3/16 with out anty real power loss

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I took my screen out and put the ring back in. Yosh says it makes more power with it in.

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Thanks guys, I am going to machine a new ring, not crazy with the stock ring and the steps in it, going to make one and taper the inside to a smooth transition. by the way Ron, what diameter is good for all around, a little smaller than stock ect.or leave it be, stock diameter is a 1.425 hole

Chet

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