Gasket-exhaust 691881

Removed blade
Removed engine
Drained oil and fuel.
Removed crankcase cover and cylinder head.
Removed damaged camshaft assembly and oil slinger
Inspected crankshaft valves and lifters for damage (none)
Inspected installed crankshaft oil seal for tears/damage(none)
Used assembly lube on all moving parts.
Installed valves valve springs and keepers.
Installed lifters
Installed new cam aligned crankshaft/cam timing marks.
Piston at TDC rotated counter clockwise .250" to check valve to lifter clearance
Installed sump gasket replaced cover and torqued bolts to spec
Installed new cylinder head gasket and torqued cylinder head bolts to spec
Finished reassembly installed motor on to mower deck put on new blade
Pulled starter rope it started let engine warm up get the oil flowing.
MADE sure there were no gremlins in the yard to kill my mower again and cut the grass.

Remove air cleaner, there are three screws that hold the back plate on remove them, the gasket may stick to the carburetor so you will have to clean the old gasket off, the new part that I got is universal so I had to cut off a tab which was not hard at all. Put the new backplate on and put the air cleaner back on.

These items did not fix my problem. What really fixed the problem was a good cleaning of the carburetor bowl and jet plug.