Last winter I poured a gas/oil mix that I use for my weedeater into my toro 418 snowthrower now it will not start.. what should I do? Did destroy my 3 year old snowthrowe?

SOURCE: mtd yard machine snowthrower not starting, doesn't

First spray a prime down the throat of the carb with the choke in the run position and attempt to start. If the motor hits and runs for a second then its a fuel related issue and you will need to remove and clean the carb. If it wont run or try to run on a prime then it may be an ignition issue. check for spark. If no spark then remove the ground wire from the module and check for spark again. If still no spark suspect the module, if spark with ground wire removed then wiring or switch is the culprit.

And make sure you dont over look little things like... does it have a fuel shut off valve and is it open? Is there a safety key and is it in -place? etc.

SOURCE: toro s 200 snowthrower electric start when air

Can you hear the motor run when you try to start it when it's cold? If so then it could be in the drive mechanism. I had one that I thought had a bad bendix in the starter. Here it has a rubber disc that turns the starter sprocket. I removed the retainer, took off the sprocket. Cleaned everything and re-assembled, and low and behold it worked. A new starter was over $100.00. Now if yours doesn't even turn when its cold, I'd look into the starter push button, or key switch for bad connection.

SOURCE: My Toro CCR 2450 GTS Snowthrower loses power after

have found that even with self propel mowers-- the brake cable is worn and makes it hard if not impossible to start.