Execution order
1. Unscrew the plug a few turns (shown by arrow) to remove air from the filter.
2. Unscrew the plug from the bottom of the filter (shown by arrow) and drain the sediment from the fuel filter.
3. Install the plugs and tighten them to a torque of 10 N·m (1.0 kgf·m).
4. Check the fuel system for leaks by starting the engine and letting it idle. After increasing the fuel supply, it should flow through the transparent hose without air bubbles.