I just got a used Scotts walk behind 6 horsepower Mulcher/Bagger mower. I need a gasket for the carb but I cannot find the blowup diagram. It is Model number 2285010x8a. I think Murray really made it. Anybody have any ideas. The gasket that I need goes in between the carb and the plate that bolts up to the front of the carb. Its a Briggs & Stratton 6 horse engine.