I thought it was just my machine and just read an old post of yours. I have one unit that has a 13 HP Honda. The casing that shields the muffler comes off all the time. It has vibrated loose and rattles. I've even had the muffler literally fall-off... I've adjusted the idle a number of times. I've even tried going without the gasket thinking metaql to metal would help. Other than that I have to tighten it every couple of days...Blake Any suggestions????
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Blake Keirstead
Washaroo Clean Services
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Blake Keirstead
Washaroo Clean Services