Learn how to adjust the RPM on a Briggs & Stratton lawn mower
this will fix a mower which is revving too low or too high. This is accomplished by adjusting the governor spring
- Flat Head Screwdriver
- Phillips Head Screwdriver
- Needle Nose Pliers
Remove the bracket holding the throttle cable in place. Remove the air filter with a flat head screw driver.
If the mower is idling at lower than normal RPM tighten the governor spring by cutting it shorter, this will increase the tension on the throttle and raise RPM. If the mower is idling at higher than normal RPM stretch the governor spring slightly to decrease the resistance placed upon the throttle.
After adjusting the governor spring to the desired amount of resistance test the lawn mower (with or without the air filter, if testing without air filter only test briefly). if everything is now working replace the air filter and throttle cable bracket.