Why Toro LX427 engine fails to start?
- AangiebellSep 12, 2025
If your Toro Lawn Mower engine won't start, try the following: Ensure the PTO knob (or lever) is disengaged (OFF), engage the parking brake, and connect the wire(s) to the spark plug(s). Also, move the Throttle/Choke Control or pull out the CHOKE control into CHOKE position. Make sure you're using clean, fresh gas (less than 30 days old) and that the fuel line is clean (replace the fuel filter if needed). Clean, adjust the gap, or replace the spark plug. Finally, crank the engine with the throttle in the FAST position.










