Why does your 15HP evinrude start idles slow stalls and then is hard starting?

Your 15HP Evinrude may be experiencing slow idling and stalling due to a clogged fuel system, such as a dirty carburetor or fuel filter, which restricts fuel flow. Additionally, issues with the spark plug or ignition system could cause improper combustion, leading to hard starting. It's also possible that the engine is not getting enough air, possibly due to a blocked air intake. Regular maintenance, including cleaning the carburetor and checking fuel and spark components, can help resolve these issues.