Question about Yard Machines 11A54MC006 21Inch 139cc MTD OHV Gas Powered Side Discharge
Check the oil level and condition in the crank case. If it's way overfull or diluted with gas, the crank case is tool full to let the piston come down. Change the oil and check to see if the float and/or needle valve in the carburator are stuck. Next; Pull the spark plug wire off the plug, remove the plug and tip the machine up. Using gloves or wrap something like a towel around the sharp part of the blade, try to pull the blade around in both directions. If it won't budge at all you have somethnig locked up inside the motor. If it moves aim the spark plug hole in a safe direction and pull it over with the rope. If oil or gas shoots out of the hole it was keeping the piston from going up. Keep pulling it over to get as much out of the cylinder as you can. Reinstall the spark plug and try to restart it. It may be hard to start and will smoke a lot until it burns everything out of the cylinder. If the cylinder was full of gas again check the float/needle valve in the carburator to see if they're stuck.
Posted on Oct 04, 2010
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Posted on Jan 02, 2017
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