I have a 6.5 horse lawn mower.It starts fine when the engine is cold but?

Question

Its very hard to re-start it when the engine is hot. Its only a year old
Its a single speed ( no throttle) 21 inch Craftman.

Answer 1

use the right oil and also check the air cleaner

Answer 2

of course it could be many things but I would look first at:

choke stuck -- (there will be an automatic choke that is designed to engage when the motor is cold and disengage when it warms up) If the choke is sticking then it is keeping the engine choked when it shouldn't be. if this is your problem, the engine should run a little rough when it is hot, and a tank of gas won't last as long, and you may get visible black smoke in the exhaust

stuck carbuerator float -- if the carbuerator float is stuck it can act sort of like a "choked" engine and feed to much gasoline for starting hot (you may notice a stronger than normal gasoline smell when trying to start it if this is your problem)

Answer 3

Return it to Sears. When hot the compression in the cylinder is increased. Change the oil, plug air filter so it will start easier.

Answer 4

there is no choke? If the choke is set to fast it may have a hard time starting. Set choke to slow before restarting

Answer 5

Do you reprime the engine to restart

Answer 6

let it rest. How big is your yard...anyway?
You can just cut the grass over a 2 day period instead of all at once.

Answer 7

Check your air filter it could be very dirty. its like working with your nose covered you dont have enough air.

Answer 8

change the plug,good luck

Answer 9

Push it.