Yamaha 90A Owner's Manual

Also see for 60F: Service manual Owner's manual Owner's manual Owner's manual Owner's manual

Contents

Yamaha 90A Owner's Manual Manual pdf 60 page image

Maintenance54or shut off the fuel cock, if equipped.3. Remove the engine top cowling and si-lencer cover. Remove the propeller.4. Install the flushing attachment over thecooling water inlet. NOTICE: Do not runthe engine without supplying it withcooling water. Either the engine wa-ter pump will be damaged or the en-gine will be damaged fromoverheating. Before starting the en-gine, be sure to supply water to thecooling water passages. Avoid run-ning the outboard motor at highspeed while on the flushing attach-ment, otherwise overheating couldoccur. [ECM02000]5. Cooling system flushing is essential toprevent the cooling system from clog-ging up with salt, sand, or dirt. In addi-tion, fogging/lubricating of the engine ismandatory to prevent excessive enginedamage due to rust. Perform the flush-ing and fogging at the same time.WARNING! Do not touch or removeelectrical parts when starting or dur-ing operation. Keep hands, hair, andclothes away from the flywheel andother rotating parts while the engineis running. [EWM00091]6. Run the engine at a fast idle for a fewminutes in neutral position.7. Just prior to turning off the engine, quick-ly spray “Fogging Oil” alternately intoeach carburetor or the fogging hole ofthe silencer cover, if equipped. Whenproperly done, the engine will smoke ex-cessively and almost stall.8. Remove the flushing attachment.9. Install the silencer cover/cap of fogginghole and top cowling.10. If the “Fogging Oil” is not available, runthe engine at a fast idle until the fuel sys-tem becomes empty and the enginestops.11. Drain the cooling water completely outof the motor. Clean the body thoroughly.12. If the “Fogging Oil” is not available, re-move the spark plug(s). Pour a tea-spoonful of clean engine oil into eachcylinder. Crank several times manually.Replace the spark plug(s).TIP:A flushing attachment is available from yourYamaha dealer.EMU28411Lubrication (oil injection models)1. Install the spark plug(s) and torque toproper specification. For information onspark plug installation, see page 61.2. Fill the oil tanks. This prevents the for-mation of condensation. For models witha remote oil tank, it may be necessary tomanually override the control unit tocompletely fill the engine oil tank.3. Change the gear oil. For instructions,see page 65. Inspect the oil for the pres-ence of water which indicates a leakyseal. Seal replacement should be per-formed by an authorized Yamaha dealerprior to use.1. Flushing attachment