Just bought a 60" Hustler Z with 25HP Kawi engine. Haven't gotten to use the mower yet, because the grass ain't growin' here yet, but will in about 2 weeks. Question is the owners manual and engine manual appear very weak on documentation for preventative maintenance. Is there another manual I need to buy? I have a John Deere 755, and the manual that came with it was great, good pictures and descriptions. Maybe that spoiled me.