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What would cause a mower to not have enough power while blades are in gear to go. Up an incline

Posted by Anonymous on

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  • Anonymous Apr 16, 2015

    I guess I should provide a little more information.
    It's a john Deere L-120 Twin cam., and could u possibly tell me ur recommended process of elimination on trying to fix it.
    Ty for all your responses

  • Kprime
    Kprime Apr 16, 2015

    Does it start easily?
    Does it run smoothly?
    No backfiring or misses?

  • Eugene Rounds Apr 16, 2015

    Need engine info. The ipl only shows Briggs V-twins and the only Twin cam engine that I am aware of for lawnmowers is the Kohler Courage and that is a single cylinder engine.



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Clogged high speed circuits in carburetor. V-twins running one cylinder due poor carburetion, ignition or blown head gasket.

Posted on Apr 12, 2015

  • Anonymous Apr 16, 2015

    I added make of the mower under comments as well as asked if I could get recommended process of elimination. Ty:)
    All for responses



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Posted on Jan 02, 2017

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SOURCE: I was mowing on a

There is a pin or a bolt that either broke or came out of the linkage...
Follow the linkage and see if there are two pieces unhooked that seem like they should be together...look also for a place that the paint is worn off but there is no pin or bolt...
Kinda hard to direct you from here but I'm sure that something came apart while you were rolling backwards...


Posted on Aug 07, 2011

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SOURCE: Craftsman 18.5 riding mower when I engage the

craftsman decks have a positive stop adjustment for the decks. A spring atached to the blade ingadgement arm pulls the tension pully into position if the cable is rusted inside the sleeve it wont put enough pull on the ingadgment pully and thus the blades dont spin full force the belts on the mowers have no adjustments only the pully . second thing is you may want to drop the deck and clean around that pully by scraping any rust off the surface under the pullys slide good luck

Posted on Jun 20, 2009

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Not the float.
Where you mowing when you had the problem or were you just driving the mower? If you were mowing, then disengage blades and see if it returns to full driving power. If you were just driving, then with it sitting, engage the blades and see if problem recurs. The blades are the bigger load on the engine, your mower will drive around with a little 4HP engine, all the extra power is for the blades and if pulling anything.
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I started my craftsman 21hp 42in deck today it had a rough idle with backfire and when engade mower it seemed to not have enough power

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