Replace fuel filter element
Follow the steps below to replace fuel filter element:
Remove the old fuel filter element; if the water collector that installed on coarse filter can be
reused, please the take collector down.
Lubricate the seal.
Screw on the filter with hand until the seal touched the port.
Continue to tighten the filter with hand until it is firmly installed (About 3/4 circle).
Drain all air in fuel system out.
Perform leakage test.