I have a Toro 20" self propelled, electric start

Change the plug.
Check coil / wire.
Clean or replace air filter.
Check fuel tank for debri / grass or dirt.
If there is grass or debri in the gas tank, you need to go through the carbruetor because the jets are possibly clogged......

Hope this works...

I have a riding toro lawn mower that cut off on me and wouldn.t start back, what could be my problem? The crak wheel trys to turn but it won,t turn over

maybe u have to much oil in it or there mite be a stone in the carberator or petrol tank thats blocking the petrol ?

Remove spark plug and observe condition. Fouled with oil, bad motor. With plug removed pull rope several times to blow out cylinder. Spray WD40 in spark plug hole, pull rope several times see if oil blows out. Spray a lot of starter fluid in spark plug hole, replace plug. Spray starter fluid in air cleaner area of carb, try to start. Replace spark plug, try to start. Ensure oil is full, all mowers have a low oil sensor now. 30w oil. Always use Stabile in gas.

Use a block of wood to hold blade stationary while tightening bolt. Ensure threads are cleaned with a wire brush before tightening. Is there a spacer or washer missing?

Does the mower die right away (cuts out) or does it sputter to a halt. Sputtering out would indicate a fuel problem. If it just cuts out when hot, then more likely an ignition problem. Your coil may need replacing. Take a close look at the coil wire (spark plug wire) and its routing. Make sure it's not touching part of the engine where it's heating up and has caused a "leak" to ground it out when it gets hot. If all is well then check your spark when the engine is hot and cuts out. Make sure you have a very good blue spark and not a weak one (check it cold first and then compare!). Again, indicating a possible ignition coil problem. Hope this helps and best of luck to you.
James

Sounds like the rewind spring is broken in the recoil starter.

Yes you can just unhook the wire and see if you have spark then, only thing is if it is the kill switch then you will have to replace it or you won't be able to shut your mower off unless you choke it but that will eventually wash the oil from cylinder causing premature cylinder wear, hope this helps you

There is a common problem with the ready start on early models. They tend to stick once moisture gets in them.

A dealer like www.arcolawn.com can do this under warranty for you.

Good luck

joe

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