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2003 Yardman Riding Mower Won't Start

My 2003 Yardman Mtd. riding mower has been sitting for a year. It will turn over but won't start. Any ideas? I've got a fresh battery on and the air filter is clean.

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Bronze Post Medal for All Time! 105 Posts
July 8, 20200 found this helpful
Best Answer

If the mower has sat this long the gas in the tank needs to be removed and clean gas needs to be added. You may need to get some new spark plugs for the mower because they can be dirty now. Chek the carburetor and make sure the gas is flowing into the carburetor.

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Gold Feedback Medal for All Time! 949 Feedbacks
July 9, 20200 found this helpful
Best Answer

You probably have sludge in your old gas and each time you try to start it, you add more sludge to your carburetor and without good gas your mower will not start or run if you actually get it started.

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You'll need to drain all of the old gas, add some gas, drain that to be sure all the old gas is gone, then you can add all new gas.

www.youtube.com/watch?v=qbmisJHvzBQ

You will probably need a can of carburetor cleaner (and maybe you will not have to remove the carburetor to clean) and a can of starter fluid. These can be purchased easily at one of your nearby auto parts stores (they have the best selection).
You can explain your problem to them and they'll help you find what you need. New spark plug is always good and, in the end, you may need gas filters. you can look any of these products up online to see what they are used for.
There are other things causing the problem but these are the basics.

Better to do what is necessary all at once so it will run well all season.

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You can read what experts are saying.

www.searspartsdirect.com/.../riding-lawn-mower-engine-spins-but...

www.jackssmallengines.com/.../

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Bronze Post Medal for All Time! 140 Posts
July 8, 20200 found this helpful

Check spark plugs , also make sure gas in tank is not mixed with old. New gas is required in tank after sitting for so long.

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Bronze Feedback Medal for All Time! 196 Feedbacks
July 9, 20200 found this helpful

Have you checked for mouse chewed wires or mouse or wasp nest in the under carriage?

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