drain your tank and flush with some gas. you should also remove the bowl from the carb. and drain it as well. Then clean out carb. with carb. cleaner. you may need to get a new gasket for the bowl as well.
If the lawnmower is not electric powered then is is probably operated by an internal combustion engine (petrol or diesel. Oddly enough, very early lawnmowers were steam powered, which means they were examples of external combustion engines.
If it is a petrol lawnmower made in China there are now spares available
petrol light brown, diesel light green
No, diesel engine require diesel fuel. Put petrol in a diesel engine and you will destroy it.
diesel and petrol are source which is used to generate power.
Petrol is and bit more vicous and that diesel is a lot darker than petrol. Petrol burns quicker when set alight, however diesel burns more brightly!
petrol
No, you cannot convert a petrol to burn diesel.
Petrol is far more comustile compared to Diesel
From my experience they do seperate. Gas (petrol) to the bottm and diesel to the top.
diesel
Diesel