Yanmar — Fuel Filter Replacement

Maintenance

From a Yanmar service manual — check it applies to your exact model before use.

Browse Yanmar generators & specs →

Procedure

1. Disconnect the connector of the water alarm switch.
2. Close the fuel tank cocks and drain fuel from the filter.
3. Remove the fuel filter.
4. Remove the water alarm switch and O-ring using pliers.
5. Install a new O-ring to the alarm switch and manually install it to the new fuel filter.
6. Apply fuel to the gasket of the new fuel filter and screw it in.
7. Manually retighten the filter by 3/4 turn.
8. Connect the water alarm switch connector.
9. Operate the hand pump to add fuel until operation feels heavy.
10. Start the engine and check for fuel leakage.

Source: Yanmar service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

More Yanmar repair guides →