How to Install the Sending Unit in the Attwood 12-Gallon Fuel Tank
- 1). Place the fuel tank on the ground adjacent to a fuel pump, to ground the tank during filling. Fill the fuel tank with 12 gallons of fuel, if yours is a four-stroke engine, or with a 12-gallon fuel-and-oil mix, if your engine is a two-stroke engine.
- 2). Insert the combination fuel-gauge cap and fuel-gauge sender into the the filler spout of the tank.
- 3). Thread the combination cap and fuel gauge onto the filler and tighten the cap fully, by hand.