Old 06-17-08, 05:44 PM
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I have a Swisher zero turn with a 27h.p B&S ELS engine. It has 20 hours on it and started making a popping or backfiring noise at half to full throttle. But, it doesn't seem to do it while under load.(at least I can't hear it then!) Any suggestions? Thanks
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Old 06-17-08, 11:20 PM
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With only 20 hours on it, I'd be looking into warranty service. It could be as simple as a spark plug, but it also could be a valve problem or camshaft problem.

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