Most riding mowers have three or four safety switches. One for the seat, one for the clutch/brake pedal and one for the deck height lever. If the mower has a deck engaging lever there is one for that too.
Typically this is caused by a bad seat safety switch.
right next to oil filter
This is typically caused by a bad seat safety switch. The safety switches are setup so that if the rider falls off the mower it will shut down. That way the rider does not get run over. So, if it senses that there is no one on the seat it will shut down when engaged.
Without knowing what engine or what kind of mower it is this is just a guess. But, it is possible that your flywheel and/or coil have gotten rusty and are not getting the conact that they need to make the spark. Try removing the cover and sanding the flywheel and coil. If it is a riding mower with a key switch there are many possibilities including anything from a bad switch to one of the safety switches.
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.
(1) Check idiot switch if it has one (safety switch) (2) Check gas line - is valve open? (3) Check choke if it has one (4) Check air filter (5) Check spark plug (6) Check points and condenser (7) Check spark coil and plug wire
This is usually caused by a faulty seat safety switch.
The safety switch to start the motor on a Ranchking riding mower is located in the ignition. If the clutch needs to be depressed several times before the mower will start, there might be a problem with the adjustment of the clutch.
That depends in the model and what transaxle it had. Typically it will be by the shifter that you grab to put it into reverse.
Might be in your ignition : lose wire, bad switch : when it won't start check for spark .
Most single cylinder failures on B&S twins are due to electrical failures. Check ignition diodes, coils, and key switch first.
The kill-switdh wire is disconnected. loose. or broken. The kill-switch wire starts from the OFF position of the ignition switch and meets another wire that leads to GOUND to stop the engine.