Let the gas out of the carb. Either loosen it a little from the base and let it out, or just letting it sit and cool down should do it
It depends on how long you let it run. If it is only for a couple seconds there will probably be no serious damage. If you run it for any extended period of time it will overheat the engine and lock it up and ruin the engine.
check location of gas line, heat may be causeing vapor lock, fuelpump going bad,
The choke on a riding lawnmower is typically a lever on the "dashboard." Often it is near the lock. The choke is used primarily when starting a riding mower that is cold and often it is not necessary to use the choke after the engine has been running. The choke, when engaged, allows more fuel and less air to reach the spark plug in the engine. The higher concentration of fuel is easier to ignite and thus the engine is easier to start. Once the engine is running and warm, the choke should be disengaged.
you can get a new one made from people like pop a lock i'd call first though
dheck tention on drive chain, probable too tight
dodge lancer vapor lock
Three things come to mind: 1) The cooling fins that keep the engine cool are blocked by debris and letting the mower run hot. 2) The coil is getting hot and breaking down causing it to not get spark to the engine. 3) There might be an exhaus leak near the carb causing the gas to vapor lock.
For my Lawn tractor i just unscrewed the gas cap a bit and shook the rider back and forth with my hip. I had to replace my gas cap because the breathing function of it had worn out.
Install a lock washer between the head of the bolt and the flat washer that rests against the blade.
A common problem with Briggs or any other lawn mower is vapor lock or insufficient oxygen. When the engine begins to bog down or become unstable, try loosening the gas cap to see if it will stabilize. If it does, then it means the gas-cap vent is clogged up or needs replacing.
Disengage blades, push down and/or lock it and turn the key. If nothing happens, the most common parts for failure are the key switch and the solenoid.