Mick, first the caveat --- I don't know diddly squat about automotive mechanics.
Now --- there's a small exhaust (I think) pipe that comes straight down out of your motor. I think it's got a small bend at the bottom to send the fumes toward the back. I've heard that if you attach a longer pipe that reaches the rear of the cart, it will quiet it somewhat, and push the fumes away from the seat area.
Comments from you smarter folks???
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