Maybe it's because your not strong enough or you need to get the start cord fixed. The gas could be old, the spark plug may need replacing or the air filter may be clogged.
your motor could be blow you could have a back up in the fuel lines you could have a bad piston you could be runing 2 cycle fuel there are many reasons but i think its because your not strong enough
starving for fuel
make sure the gas valve is turned on and you put the air filter in right
It depends on if you bought a pull start mower or a power mower. The pull start mower will have a handle you have to pull hard to start it. The power mower should have a button that simply turns it on. Make sure there is gas in the pull start mower.
replace battery & starter solenoid.. possibly carb.
Check your fire and gas.
dirty carb bowl or water in the carb
Wish it to start.... or if you ran out of wishes... check the gas.....
If all oil the mower will not start. If only a little oil, the mower may start but run rough and smoke very much.
do you have gas in the tank
Gas can start your lawn mower, gas can start your fireplace (if it is a gas fireplace), gas can cook your food on the stove (if it is a gas stove), and gas can cook your food on the grill (if it is a gas grill).
push start it
not getting gas. clean\carb rebulid needed