Yamaha F9.9D Ower's Manual

Contents

Maintenance51or other qualified mechanic.2. Verify whether the idle speed is set tospecification. For idle speed specifica-tions, see page 40.EMU29093Changing engine oilWARNINGEWM00760 Avoid draining the engine oil immedi-ately after stopping the engine. The oilis hot and should be handled with careto avoid burns. Be sure the outboard motor is securelyfastened to the transom or a stablestand.CAUTION:ECM01240Change the engine oil after the first 10hours of operation, and every 100 hoursor at 6-month intervals thereafter. Other-wise the engine will wear quickly.NOTE:Change the engine oil when the oil is stillwarm.1. Put the outboard motor in an upright po-sition (not tilted).2. Prepare a suitable container that holds alarger amount than the engine oil capac-ity. Loosen and remove the drain screwwhile holding the container under thedrain hole. Then remove the oil filler cap.Let the oil drain completely. Wipe up anyspilled oil immediately.3. Put a new gasket on the oil drain screw.Apply a light coat of oil to the gasket andinstall the drain screw.NOTE:If a torque wrench is not available when youare installing the drain screw, finger tightenthe screw just until the gasket comes intocontact with the surface of the drain hole.Then tighten 1/4 to 1/2 turn more. Tightenthe drain screw to the correct torque with atorque wrench as soon as possible.4. Add the correct amount of oil through thefiller hole. Install the filler cap.CAUTION:ECM00970 Do not overfill the oil, and be sure theZMU044161. Drain screwDrain screw tightening torque:8.0 Nm (5.9 ft-lb) (0.82 kgf-m)Recommended engine oil:4-stroke outboard motor oilEngine oil quantity (excluding oil filter):1.0 L (1.06 US qt) (0.88 Imp.qt)1ZMU04417