I have a Toro self propelled walk behind mower model # 20016. The self propelled just stopped working. My owners manual does not mention anything about the self propell. Can you direct me as to what to check?

It seems to be an obstruction in your fuel delivery system. Get a can of ether and a spray a short burst of it into the breather area near the carburetor, if the mower starts up and then stalls out, then you may need to get your carburetor serviced.

take the top cover off the engine. you will see the coil on top there. unplug the wire that plugs into it. put the cover back on and try to start it. if it starts it is not the coil. try a different spark plug first. pull the cord with the plug out to get all the gas out of the engine.

No adjustment, ensure no obstruction on drive end of cable, replace cable, probably stretched over time.

I would probably take it back to where I bought it to begin with. But, I have an old Huskavara mower self propelled, at times if I set it on top of two 4 x 6 blocks (6 inches up) I have to take off the wheels and clean up the axles using thinner, degreaser, or gas, anything to break down oil or dirt. Then I oil the surfaces and reassemble, and the wheels work for a while.

I suspect the drive belt, not the Hydro. Especially if the drive belt was never replaced. The belts are known to stretch and wear out over time. It's a cheap part.

Remove the left wheel and check the gears inside the wheel and the drive sheft. They might be worn or sheared and need renewing or maybe they just need oiling. Spray them with WD 40.

You might have a broken belt to the self propelled or a broken spring or whatever engages the self propel. Take off the cover and see if anything is broken or missing. Have someone engage the self propel while you are watching and see what is going on.

roundo4

Try adjusting your self propel cable. A slight extension of the cable (1/4 inch) will double speed, so do a little at a time. Take the back guard off and clean debris 2 or 3 screws and it is just a cover so nothing will pop out unless that is your real problem. You should have grease fittings behind rear wheels so squirt 2 times with grease gun in each wheel and 1 squirt every 3rd mow.

If you take the wheels off and remove the belt from the small pulley on the the front axle underneath the pulley you should see a small transmission. You usually can split this unit in half . You will see two gears and sometimes one plastic and one metal. The plastic one is usually the culprit. Hope this will help you out. Donnyb60

Self propell toro mower will not "self propell", nor can i pull it backwards