Mercruiser Mercury Replaces 91 78310 18 9861 Review

Based on our own experience, this replacement part greatly improved our motorcycle's performance. Our engine ran smoother and had better acceleration. The installation process was quick and easy, even for those without much mechanical experience. The only downside was the slightly higher price compared to other options on the market. Overall, we highly recommend this product for anyone looking to improve their motorcycle's performance.

You will need this tool to disassemble the Mercruiser sterndrive and replace the boot. The pins holding it in place look like torx bits but aren't. They came out easily with this tool and the rod broke.

This adapter accommodates that odd internal interference on the pivots. Did you know about the TORX screw standard back then? However, the pivot will cost a lot more than this tool if you damage it and try to achieve 95 ft-lbs of torque.