Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Is ignition fuse good?
Look in the starter solenoid area, behind engine.
Seat switch. brake switch, or pto switch will keep starter from engaging. Do you have voltage to the key switch?Do you hear fuel solenoid click when key is turned on
Do you have voltmeter or test light to test for voltage?
OK, check to be sure the fuse has power past it.
Was old pto switch melted? Could be wires in the harness plug be touching? Maybe pto is still (on)
?? You say (when it's disengaged it will crank).???
You may have a battery that is so bad, it won't jump through!
Check the fuel solenoid. Engine will not fire if it gets no fuel!
Briggs twin or kohler? Model number?
Single kill wire from key switch to coils
Nothing else should kill spark.
Briggs twins, if they have spark and compression, and fuel can have pushrods off! Just a thought.
So if jumping with car, is the battery good?
So battery voltage is good?
OK, let me know.