回答“I need a repair manual free”http://data.manualslib.com/pdf2/49/4867/...-craftsman/ez_917270731_owners_manual.pdf... This is the owners manual which has most of the routine stuff listed in it, along with good parts diagrams.
回答“Adjusting valves on a 17 hp briggs & stratton motor”Additional info: I have a 17.5 HP Model 31C707. Valve Clearance – Intake .003 - .005 in. Valve Clearance – Exhaust .005 - .007 in. I prefer to not stick anything metallic down the spark plug hole. A disposable chopstick works fine and makes it easy to mark at TDC, then put a second mark 1/4 inch farther out.