Small Engines (Lawn Mowers, etc.): briggs intec i/c 206 6.5 ohv, valve clearances, intec

Question
hard to start and won't stay running.model 000201fd type 121412 code 0158e1

Answer
This time of bad gas is a big issue, so I would drain all of the fuel
out of the tank and carb and fill with fresh first, start with a new
plug and start there.
 You might also check your valve clearances, they should be at .004-.006 with the engine cold.