When you finally hit bottom — and you will — you’ll want to know how to install a new Yamaha lower unit. Tools Required:- 14 mm socket (and wrench)- 12 mm socket- Pliers- Grease- Gear lube and pump- Torque wrench- Large flathead screwdriverMarine Parts Warehouse is a dealer for Sterndrive Engin …

Step OneFirst, be sure your outboard is in a vertical and upright position.Locate and identify the upper and lower Fill & Drain Plugs.Place an oil drain pan beneath the outboard.Step TwoRemove the BOTTOM drain plug first (not the top).Some oil will begin to trickle out so be sure your oil drain pan …