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Pull to start, smoke comes out and motor binds

Pull to try and start, smoke comes out and motor makes noise as if the mower had run over large rock

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Sounds as if the mower has run over a large rock prior to what you are describing, you have a definate sheered pin on the crankshaft, causing the smoke(completely out of time).
You need to take the top off the engine 2 or 4 philip screws on the top plastic shroud, the pull chord assembly removing the pull chord as one unit, 3 philip screws need to be unscrewed or 3 rivets need to be drilled out to unfasten this assembly, after this is complete you will remove the 3/4" nut that holds the "flywheel" securely to the main shaft(crankshaft) with a small hammer and the 3/4 nut lightly threaded on the shaft take a block of wood and lightly tap it this action releases the flywheel from the shaft...do you now see the woodruff pin sheared off in the machined groove on the shaft? replace that pin(shear pin,woodruff pin many names for the same part) take the old one to Ace Hardware or the like and get a new one, while it is apart and the plug of course is removed for safety sake of no start while working on it... turn the blade observe from the under carriage to see if the shaft is bent if it is I dont recommend repairing it replace the mower its an expensive job, if the shaft is ok sometimes the blade gets bent...replace the blade, Ace should have this as well bring old blade along when you go for the pin.
Happy Mowing!!

Posted on Jul 19, 2010

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B&D Elct mower crapped out today,rock?? started making a funny sound. and the same noise with a lttle white smokeLooks like th a belt of some sort under the blade is out of place. Any suggestions?


You've either broke the motors housing moving the motor out of alignment or the impact on the blade has snapped the drive belt by the sudden torque or it's been jerked off by the sudden stop of the blade it's been yanked off the drive pulleys and the nose is the motor running free with no blade resistance you will need to open up and inspect the drive belt assembley system the blade drive shaft pulley access area and the motor access area to either replace the broken belt or refit the belt if it's not been chewed or damaged by the free spinning motor pulley the smoke it was proberbly the belt rubbing against the motors drive pulley or wrapping up around it burning it through friction
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