Repairing a John Deere Riding Mower?

When I sit on the seat of my D122 1/3, I feel a tingling sensation in my spine. I figure it may be some electrical short somewhere on the mower so I just ignore it and continue my movements. When I insert the key, the mower makes this weird sound, like "ahhh"? I press the foot brake to its limit, I give the key a turn, and the JD fires up just fine. It does lope though. The smell of alcohol is stout. I can see blue flame and these popping type puffs coming out the chrome headers with every lope. I should also let you know I have to wear ear muffs now when I mow. When I disengage the brake, the mower lurches about 6" forward (depending on forward or reverse selection) with every lope of the motor. If I step on the throttle, the front wheels come off the ground and the rear tires lose traction in my grass. This makes it nearly impossible to mow given I have only 120' from one end of the yard to the other, and 200' the other way. Don't even get me started on the problems when I engage the PTO (blades)! I may or may not have used alcohol when I filled the fuel tank. I don't remember. Wish I could figure out what is wrong with this thing. Any help would be greatly appreciated!


Thank you!

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March 16, 20180 found this helpful
Best Answer

First off stop using this mower you are only causing more damage to the engine.

Second: You'll need to drain your fuel tank and give it a good cleaning. This includes your fuel lines and carburetor.

Third: Pull the plates off the pistons and header. Check for bent pistons and problem in the firing of the mower.

Forth if you are getting electricity in the chair when you sit on it this is extremely dangerous.

You should start with the major overhaul of your engine and start taking this apart. The blue flames and smoke coming out of your engine will catch on fire soon. It sounds like you have a fuel leak in there and this is causing too much gas to pass through your engine and catch on fire.


If you have no idea how to service the mower, I'd suggest that you take it into a shop and have this serviced this could save the life of your mower, but if you keep forcing it to work like you are then you are only destroying the engine, drive chain and cutting blades.

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