Hard starting

[jolygi59]

New to forum. I am struggling with a hard to start Briggs and Stratton engine on a Troy Bilt mower. I have replaced the flywheel key, (it had shifted) replaced carburetor, spark plug, air filter and fuel line. Have changed the oil and cleaned the fuel tank. If I do get it started it runs great. Just so hard to get started. Any help is appreciated

 

[Scrubcadet10]

Define hard to start, is the engine turning over slowly, or does it crank and crank and crank then starts?
also post the engine model #, it should be stamped on the valve cover.

 

[tom3]

Engine model and code will help. Might have an automatic choke that's not working. Kind of an oddball setup too.

 

[Born2Mow]

Fuel over 6 weeks old ? Gas ain't what it used to be.