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Thread: clogged spark arrestor on Yamaha cart
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Old 06-09-2022, 05:06 PM
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Originally Posted by Mike Dybas View Post
My cart was acting up too. I was changing the oil and looked at the spark arrestor. All clogged up with carbon deposits. Read many who removed it or drilled hole(s) in it to improve performance. Not a believer in "back pressure"...engine has to breath. I drilled into it and the whole thing spun out. No improved performance with it removed and the cart was MUCH louder once warmed up. Couldn't find just the spark arrestor anywhere as it would be an easy part to replace. Had to buy the entire exhaust system. Not doing that. Called carts and Clubs of Ocala. $101 to fix as they weren't buying my "brillo pad" material fell out. Future oil changes will include spark arrestor cleaning. My advice is don't remove it. Call it in if under warranty.

Why after warmed up? Seem to me it would be louder when running in cold start?

Much louder like muffler removed and straight pipe? I imagine you was hearing echo when going through tunnel or close to curb?