Thread: 2004 Sportsman 600 twin backfire
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Old 06-30-2009, 01:04 AM
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jimmypsp700 jimmypsp700 is offline
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The front exhaust donut (NAPA part # 31360) at the Y-pipe exhaust manifold auto replacement.

Also check the carb adaptor. I have replaced the carb boot/adaptor (p/n 1253415), the rubber gets weathered/dry rotted bad on some and may crack through.
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