1989 12hp briggs L-head No Compression Dissassembly For Valve Service.

12Hp L-head briggs No Compression Disassembled For Valve Service
Compression was leaking out the exhaust valve, causing no start.
Valve surfaces were badly grooved and the tappet clearance was too tight.
Disassembled the engine before dropping off at a machine shop where the valve faces were re-cut and the tappet clearance adjusted.
Cleaned the carb little bit and replaced seals and float needle.
Assembled the engine for test run and fine tuning to get it ready to sell.
Before hand it got a sump gasket, shaft seal and dipstick tube gasket.
Then carb rebuild kit, starter bindics, valve service, valve cover gasket, and head gasket.
Runs great now and no smoke or knocking.
Here's a link to comment briggs and stratton engine specs images.app.goo.gl/AEaspRdMZvn...