Why does my Toro timecutter zs 4200t Lawn Mower engine lose power?
- MMatthew DuarteSep 3, 2025
If your Toro Lawn Mower engine loses power, consider the following potential causes: * The engine load may be too high; reduce the ground speed. * A dirty air cleaner can restrict airflow; clean the air-cleaner element. * Low oil level in the crankcase can cause power loss; add oil. * Blocked cooling fins and air passages under the engine blower housing can lead to overheating and power loss; remove any obstructions. * Faulty spark plug(s) (pitted, fouled, or with an incorrect gap) can reduce engine power; install a new, correctly gapped spark plug(s). For issues such as a blocked fuel-tank vent, dirt in the fuel filter, dirt, water, or stale fuel in the fuel system, or incorrect fuel in the fuel tank, contact an Authorized Service Dealer.








