Question about Troy Bilt 175HP Manual 42" Riding Mower

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Turns over will not start

Mower turns over will not start even with starter fluid

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Check for spark at the sparkplug by pulling the plug wire from the plug, now insert a phillips head screwdriver into the plug wire and hold by the handle so that the screwdriver is about 3/8 to 1/2 inch from the cylinder head or bolt. Have someone crank the engine and check to see if it sparks. If you have a good blue spark then that's a good thing. Next replace the spark plug with a new one. Spark plugs corrode when sitting in an engine for a long time and loose their ability to spark under compression, especially when they have been run for a whole summer. If this doesn't get your mower started, buy a can of Sta-bil. This is a brand name varnish and gel remover. Mix a little on the strong side and make sure to shake the unit to mix the fuel and Sta-bil. I usually mix a few ounces of gas and Sta-bil in a small squeeze bottle. Then I remove the fuel line and fill the carb and fuel line with this solution, which I mix about 1/2 ounce of, to the 2 ounces of fuel. Crank it over after replacing fuel line and see if it starts. Make sure the choke is on full, it will help it stay running till the mix does its job. Then close choke slowly. If need be get back to me with the Model number, series and year. Good luck I hope this solves your problem. Please post a solved comment on fixya, so I receive credit for the solve. This will increase my ranking on That is how I get paid. By knowing I am helping someone!!!!

Posted on Apr 22, 2014

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Check for spark if you have no spark. you will probably have to replace the ignition coil

Posted on Apr 22, 2014


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