Question about Toro Power Lawn Mower

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After pushing the red fuel primer butten the engine runs for a minute then shuts off.

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  • Toro Master
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This is indicating a fuel flow problem. I would start at the fuel tank and work my way to the main fuel jet on the carburetor. Make sure there is no foreign debris in the tank. Make sure your fuel line is clean and clear of any debris. Small particles can cause huge problems. I recommend installing an inline fuel filter on ALL small equipment. Once the tank and line are clean and clear, remove the float bowl on the carburetor and clean it. The brass bolt that holds the bowl on is also the main jet of the carburetor. I has to be cleaned as well and has very small orifices in the length of it near the top that have to be clear. Use NO metal objects to scrape or clear the main jet. It can be cleaned pretty well with aerosol type carb/choke spray cleaner. Clean the jet till shiny and reinstall. These steps should resolve your fuel flow problem.

Posted on May 22, 2011

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1 Answer

Will not prime with primer bulb , can squirt gas in carb and get running then while running you push the primer button it chokes down the engine .


Does it stay running after you squirt fuel in the carb opening? If yes, then there may be a pin hole leak in the hose going from the fuel tank to the primer bulb and it is adding air to your carb.
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I have a yard machine mower model number 11A-549R729 that will not stay running. Have replace plug,drain fuel tank and clean carb. If you push the primer bulb it will continue to run. But once you stop...


Your carbs main jet is blocked. Using the primer supplements the fuel input and keeps the engine from becoming fuel starved.

You need to remove the main jet and run a strand of fine wire through the jet to clear it.

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Engine starts right up after pushing primer bulb,


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My Poulan P3314 primer won't take in fuel or push it out.


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Wont stay running without pushing primer


Hi... I have a Poulan PRO Quantum xnp 6.75. Garage kept, unused approximately 2 yrs. Added fuel, primed & mower started but then shut down immediately. Then fuel began leaking from the primer button. I'm a single mom & CANNOT afford to have anyone fix this. However I am attempting to repair myself. PLEASE.... If you have any suggestions &/or solutions I would LOVE to know.

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1 Answer

Motor shuts off after about 2 minutes


If you didn't run a fuel stabilizer through the fuel system when you laid up the engine you probably have a varnish build and you may need to take the components off and brake them down to clean with a strong carburetor and jet cleaner.
It is also possible that the fuel pump is also going bad. There is a long shot quick fix that has worked for me in the past with varnish buildup. Add a strong mix of carburetor and injector cleaner of the fuel and run the engine long enough to get it into all the parts. Shut it down and let it sit a day or so. Start it up and let it run. It may run rough at first. If this doesn't work start taking it apart. Good luck.

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