Hi I am selling this 2007 mercury 2.5L 150 optimax 2 stroke powerhead this was removed from a running motor compression was 130-135 cold on all cylinders and motor sounded good when we started it before tear down comes exactly as shown in the pictures computer has been removed so again 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.