I need to know how to fix my lawnmower that has been sitting for a year?

Whenever I have a small engine that wont start after improper storage I

1.drain gas from the gas tank

2.drain gas from the carburetor

3.remove air cleaner and try too spray carb cleaner inside

4.check and clean if necessary thee spark plug

If you can smell a varnish type smell then it is defiantly bad gas.If the above steps don't work, unscrew the bolt under the carb which should enable the float bowl too come off.Spray carb cleaner liberally all over .In the future mix a gas stabilizer into any cans you use for small engines.

Drain existing gas out, Replace spark plug , Check gas line for leaks, Change oil, Check air filter and clean if necasary, Fill oil, fill gas, turn on mower push choke or primer try starting. Good Luck

It's probably just the old gasoline. Empty the tank, and refill with fresh. This is a common problem

well since its been sitting for a year, thats not good. you may have to buy another one.

trust ive had that happen to me.

warranty might be finished, take it to a service repair shop for lawnmovers and have them check it out and service it...........