Question about Toro Lawn Mower With Toro Power Tools

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Toro 20016 engine surges up and down - then stalls

My Toro 20016 mower enging surges up and down for a few minutes and then shuts off. After it shuts off the throttle is pinned wide open on the top of the carb - seems like the governor arm is forcing it to be wide open. Any ideas of what is going on?

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  • cwkran2 May 30, 2009

    I have a float style carb - so is there a diaphragm involved? What specific tips can you provide on cleaning and setting any adjustments on the float-style carb?

  • Jim Carlton
    Jim Carlton May 11, 2010

    sounds like the choke is stuck on

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You have carburetor problems. Chances are the diaphragm needs to be changed and the carb. needs a good cleaning. If you need tips on carb. cleaning, let me know.

Jim

Posted on May 29, 2009

  • Jim Parker
    Jim Parker May 30, 2009

    I doubt that it has a diaphragm. You need to disassemble the carb. and clean all small portals with a Den Tek Brush, (used for cleaning teeth). They work great for this. Also clean the jet (in carb.) with this brush. Replace any gaskets if need be. You don't want air getting in the carb. through a leaky gasket. Once the carb. is clean, check the spring on the governor and make sure it is attached and movig freely.

    Jim

  • Jim Parker
    Jim Parker May 31, 2009

    Thanks for the rating cwkran2. I don't think there is a setting for the float. If you are still having problems, you may have gas leaking from the bottom of the bowl on the carb.. There should be a spring on the bottom of the carb.(bowl) with a screw type pin.The spring may be worn out, causing it to leak gas.

    Jim

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