It depends on what you mean by the wrong fuel. If it's diesel then you will have a large mess to try to clean up and it won't run, 2 stroke mixed gas will cause it to smoke a lot and may foul the spark plug, if it's an octane difference then you shouldn't notice to much of a performance difference, if it's E15 or higher then the engine will run extremely lean and will cause irreparable damage to the engine.
If that doesn't answer the question then please let me know with what exactly you mean by wrong fuel.
Depends on what kind of "wrong" fuel you're referring to...
depends on the wrong fuel you put in it. There are a lot of different fuels. In general, if you put the wrong fuel in the engine, if its a higher octane it will over rev and blow up. If its a lower octane, it will puddle and flood the system.
You get engine damage from lack of lubrication
The engine will overheat & seize due to lack of oil. A 2 stroke needs a fuel oil mix to lubricate it's moving parts.
The engine floods and you have to wait for the lawnmower to drain before you start it up again or it might start smoking.
why/how do you think you put it on wrong?
what do you mean wrong fuel did you put diesel or 89 or 93 octane in it when it runs on 87
It is difficult to start and emits a smelly white smoke once running.
to put the oil in the lawnmower's crankcase would be fine, so long as it is an appropriate viscosity.
It does not beat
You carburetor needs cleaning out. This can happen when the lawnmower sets over the winter with fuel in the carb. Always put in a fuel stabilizer before storing the mower. I would even advise that you run the tank dry and run the carb completely dry of fuel before storing the mower. This will prevent the buildup of fuel deposits and varnish in the carb.
Nothing -_-.....