Hi I am selling this 1997 mercury 2.5L 150 2 stroke powerhead this was removed from a running motor compression was 100-105 cold on all cylinders and motor sounded good when we started it before tear down comes exactly as shown in the pictures this was a carb motor but can be an EFI as well it comes exactly as shown in the pictures please feel free to ask any and all questions and I will be do my best to answer them for you thanks.