Toro 22056 idle when blade brake on

ken51June 16, 2014

I just picked up[ a used Toro 20056 Super Recycler. It runs great except when I let go of the handle and the blade brake engages, the idle is lower and not as smooth. It sputters and pops to a slight degree. As soon as I start mowing again with the blade brake disengaged, it idles up and runs very smooth. Is this normal? I have already cleaned the carb and intake, changes the oil and put fresh gas in. The plug and air filter are brand new. Any ideas?

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When you clutch the blade, the engine loses the blade's flywheel effect at the same time the governor lets the throttle close a little while maintaining the governor RPM setting, probably around 3000 RPM. You might expect the engine to sound different at this time. I think it may have a sticky valve, but its not really a problem since the engine responds to the governor and runs properly under a load. You could try using a mild solvent in the oil and gas to see if that helps. Get some Marvel Mystery Oil at Wal Mart or any auto parts/supply. Put 1 oz in the gas tank and 1 oz in the oil. The measure doesn't have to be precise - a little more won't hurt anything. Give it about two or three cuttings to see if it makes any difference.

    Bookmark   June 16, 2014 at 7:23PM
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Thanks for your input. I put some MMO in the oil and gas but haven't really used the mower to cut the grass yet.

    Bookmark   June 16, 2014 at 9:00PM
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