Question about Craftsman 26 Hp 54" Deck Yard Tractor
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 fixya.com That is how I get paid. By knowing I am helping someone!!!!
Posted on Apr 22, 2014
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Posted on Jan 02, 2017
you most likely have a bad safety switch. there is one under your seat,one on engagement lever for blades,and probably one or two more in other places.start with the one under your seat by unplugging it and then going ahead with normale start up and implement engagement. you will have found the bad switch when everything works as it should.replace switch if you feel its necessary or just leave unplugged. it will not affect performance or longevity of the tractor
Posted on May 02, 2009
This is just a suggestion. Try pulling the choke out about one third to one half and then engage the PTO. Sometimes the air idle adjust screw port gets a tiny speck of debris in it. If with the choke partially out and the PTO engages the just grab a screwdriver and turn the air idle mixture screw counter clockwise a hair.
Posted on Apr 30, 2010
Testimonial: "Hit on the head with such a simple solution"
SOURCE: Runs fine when blades not
If it has a B&S engine, and many do, try this. Remove one spark plug at a time and start the engine. If it runs with one plug, but not the other, then you have a dead cylinder. That is why it seems to run OK so long as no load is on it.
I have had 2 different mowers with B&S engines which bent the valve push rods on the left (as the driver sits) side of the engine causing the problem you speak of. And if you google this issue you will find that I am not the only person who ever had this scenario.
If you have the OHV type engine you can pull off the little valve cover, next to the spark plug, and see the rocker arms and the push rods behind them. Replacing them is about as easy as it looks, however setting the gap between the top of the valve and the rocker is best left to someone who knows what they are doing.
Posted on Sep 11, 2011
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