Yamaha F40H Owner's Manual

Also see for F40G: Owner's manual

Maintenance78fastened to the transom or a stablestand.ECM01711Change the engine oil after the first 20hours of operation or 3 months, and ev-ery 100 hours or at 1-year intervals there-after. Otherwise the engine will wearquickly.To prevent spilling oil where it could causedamage to nature, it is strongly recommend-ed that you use an oil changer to change theengine oil. If an oil changer is not available,drain the engine oil by removing the drainscrew. If you are not familiar with the proce-dure for changing the engine oil, consult yourYamaha dealer.(1) Put the outboard motor in an upright po-sition (not tilted). NOTICE: If the out-board motor is not level, the oil levelindicated on the oil dipstick may notbe accurate. [ECM01862](2) Start the engine. Warm it up and keepthe idle speed for 5-10 minutes.(3) Stop the engine and leave it for 5-10minutes.(4) Remove the top cowling.(5) Remove the oil filler cap. Pull out the dip-stick and use the oil changer to extractthe oil completely.TIP:When using an oil changer, skip steps 6 and7.(6) Prepare a suitable container that holds alarger amount than the engine oil capac-ity. Remove the drain screw and gasketwhile holding the container under thedrain hole. Let the oil drain completely.Wipe up any spilled oil immediately.TIP:If the oil does not drain easily, change the tiltangle or turn the outboard motor to port andstarboard to drain the oil.(7) Put a new gasket on the oil drain screw.Apply a light coat of oil to the gasket andinstall the drain screw.ZMU036591. Oil changer1. Drain screw2. Gasket1ZMU0618712ZMU07927