The Toro 74-3894 Lawn Mower Throttle Control helps regulate engine speed for controlled and efficient mower operation. This replacement throttle control connects to the mower's engine control system and allows the operator to adjust the throttle setting as needed during use. Proper throttle operation supports consistent engine performance and responsive equipment control. Replacing a ... https://www.wholetoolbox.com/toro-74-3894-lawn-mower-throttle-control/74-3894.html