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A jack plate is a hydraulic device that lifts and lowers a boat's main outboard motor. Raising the motor actually lifts the boat out of the water, enabling it to move faster. Most professional tournament anglers use jack plates to move faster than their competitors and get to the best fishing areas first. Filling the jack plate with oil is not difficult, but it does require some knowledge.
Items you will need
3/16-inch hex wrench
20 weight non-detergent oil
Remove the 1/8-inch socket filler plug. A 3/16-inch hex wrench will fit this plug. The filler plug is located on the plate.
Move the jack plate all the way down to allow the air bubbles to escape from the oil reservoir.
Run the jack plate up three inches. Remove the level plug, which is located directly below the filler plug, with the wrench.
Pour oil into the filler hole until it begins to run out of the level hole. Use 20 weight oil (20W-20).
Screw the level plug back into its hole, move the jack plate all the way up and replace the filler plug.
- bass boat repair 01 image by Joyce Wilkes from Fotolia.com