Try spraying start gas into the air cleaner.
well you first need to tell someone is it electronic ignition or dose it have points ??
Not on a push mower that has no electric start. On a riding mower, yes there is an ignition key.
Generally the ignition switch activates headlights on a riding mower and the start position only send current to the starter solenoid. If you turn the key and the engine cranks over than the lack of spark is going to be something else. If it is a riding mower you will have several safety switches to prevent start up under unsafe conditions.
Sounds like the engine heats and the ignition fails.
If the mower has a shift knob control for "Start" "Run" and 'Stop', the kill switch will be on the end of the cable that leads to the throttle bracket. If the mower has the safety handle that shuts off the mower when it is not depressed, the kill switch will be at the end of the cable that leads from the handle to the engine. If the mower is operated with an on-off ignition switch, the kill switch wire will be spliced to the switch "off" wire some where between the throttle cable and the switch.
They do go bad. Especially if there is debris under the engine cover that makes it run hotter than it is supposed to.
model type and code of the mower and from the engine. generally it is metal stamped on the engine and the unit model is near the rear of the mower.
Buy a lawn mower engine repair manual at Border's or Barnes & Noble.
very gently, or the mower will get squashed
you mean a lawn mower right.. if so no
depends on the engine but it will be on the engine block.
.010 to .012"