Keeping the valves adjusted is a very important preventative maintenance item that is often overlooked! it can cause many issues including loss of power, high fuel consumption, rough idle, hard starting, and in our case excessive top end noise or rattling in the valve cover area.. Join Cody as he give some helpful tips and shows you how to adjust the valves on a John Deere 737 ZTrack zero turn mower with a 23 horsepower Kawasaki v-twin engine. both the intake and exhaust valves set between .004"-.006" it's a lot easier than you think and a lot cheaper than taking it to someone! Be sure to order new valve cover gaskets so you don't create an oil leak and unnecessary headache later down the road! If you have any question feel free to drop it in the comments below! Don't forget to like, share, and subscribe! Also be sure to ring the notification bell so you will be up to date on our latest uploads and you won't miss any helpful tech tips to keep your equipment running great and working for you! Thank you for watching!