Re: 71/2hp evinrude

[chris-p]

^^^ Good point. If you are lucky, the head gasket is blown between cylinders, or the head slightly low between cylinders, causing equal, low compression in both.

Worst case scenario, like many 7.5hps before it, it was run too lean, and is scrap or in need of rebuild.

If it were mine, I would pull the head, the bypass covers, and the exhaust covers. Inspect head gasket and head. Inspect the rings through the now open covers. See if the rings will bounce, when you press on them with a screw driver. Check the sides of pistons for damage. Check the bore for damage.