In this video we take a look at a Briggs & Stratton lawn mower engine which has a seized piston. As we dug into this thing, we realized it also had a broken valve. This is not a problem as it is easy to unseize the piston on Briggs & Stratton, Tecumsa, Honda, and other types of small engines. In this video we will also cover how to replace a valve in a small engine and set valve lash properly on any lawn mower, generator, power washer, or other machine with a small engine. Get 10% off all GRYPMAT gear by using code D&E10 at ?aff=DEinthegarage HAS ONE OF OUR VIDEOS HELPED OR ENTERTAINED YOU? Want to help up make more? Checkout D&E Merchandise and our Patreon Page.. T-Shirt, Beer Koozies, Stickers and More: Become a PATREON and receive D&E gear as well as exclusive content: We hope you enjoyed this video and will keep in mind that all information included is intended to be purely academic and in fact is only the opinion of D&E. We are not professionals, nor are we qualified to knight you a professional. D&E want to ensure that anyone modify or fixing their own vehicle does so in a safe manner which leaves the vehicle in a legal, roadworthy state. In short, DON'T BE A MONKEY WITH A TOOL BOX! If you don't know what you are doing, leave it the professionals!