If it's a "new to you" blower make sure somebody didn't put the wrong pulley on it before you got it. I bought a QA-42 for my 129 this Fall and put it on my tractor and it would barely throw the snow. It had a 4.75" pulley on it in place of the correct 3.5" pulley. Also there was no spline key holding the "wrong" pulley on the shaft so the pulley was also slipping. Replaced the pulley and man that sucker will chuck some snow now!
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1971 Cub Cadet 129 38" deck & QA42A
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