Timemaster 20199 starts up easy. When bladed are engaged and we begin cutting grass the mower cuts out. The mower sounds ok when ideling with the blades engaged but when ever we start running over grass it starts to loose power or looses it completely. The grass is dry, only about 3" high and the deck height is high
SOURCE: My Toro mower is 7 yrs old. 3 speeds, blade
I've noticed that when the blade get dull it work harder a cutting tall grass. I just put a new blade on mine and now it runs and sounds like a brand new mower. also if the inside of the deck is coated with old grass that makes a differance too
SOURCE: blade not engaging
The blade will spin automatically when the motor runs because it is connected to the main shaft. If it is not cutting, it will have to be removed and sharpened with a grinding wheel
SOURCE: why does my troy bilt riding mower loose power to blades
check to see if you have a bent blade or a stretched deck belt
SOURCE: When I lower the blade deck on my Troy Bilt mower
If it is a 2 cylinder with a set of bent valve push rods on one side it may well start and sound good, but it will not be able to do the work as only one cylinder is functional. I had a similar problem on a B&S V2. Pull the plug wires off one at a time. If it makes no difference with one plug wire off and is totally dead with the other plug wire off, then you have a dead cylinder.
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