Yamaha f40 outboard service manual download

Then install the lock plate on the other end of the lanyard into the en- gine stop switch. Do not attach the lanyard to clothing that could tear loose. Page 40 Operation during normal operation. Loss of en- NOTE: gine power means the loss of most When the engine is cold, it needs to be steering control. Also, without engine warmed up. For further information, see power, the boat could slow rapidly. This page Consult Forward tiller handle and remote your Yamaha dealer if the cause for the control models low oil pressure warning indicator can- Tiller handle models not be found.

Do not open the throttle more than half. Oth- erwise the boat could become unstable, which could result in loss of control and an accident. Tiller handle models Place the throttle grip in the fully closed position. Remote control models Pull up the neutral interlock trigger if equipped and move the remote control lever quickly and firmly from neutral to Stop- ping the engine immediately after operating at high speed is not recommended.

EMU Trimming outboard motor The trim angle of the outboard motor helps determine the position of the bow of the boat in the water. Correct trim angle will help im- prove performance and fuel economy while reducing strain on the engine.

Page Adjusting Trim Angle Operation switch while the boat is moving. Adjust the outboard motor trim angle using the power trim and tilt switch. Power trim and tilt switch ZMU 1. ZMU Place the tilt lock lever in the release po- sition. EMU Procedure for tilting down manual and hydro tilt models Release the tilt lock lever. Run the boat at the lowest possible speed when using the shallow water cruising system. Use extra care when operating in re- verse. Too much reverse thrust can cause the outboard motor to lift out of the water, increasing the chance of ac- cident and personal injury.

Return the outboard motor to its normal position as soon as the boat is back in Pull the tilt lock lever up to the release Cruising in turbid water Yamaha strongly recommends that you use the optional chromium-plated water pump kit not available for some models if you use the outboard motor in turbid or muddy water Consult your Yamaha Page Procedure to each gallon of fuel.

Page Lubrication Seal replacement should be performed occur. Cooling system flushing is essential to Grease all grease fittings. For further de- prevent the cooling system from clog- tails, see page Page Flushing Power Unit Maintenance dling or working near batteries. Page Cleaning The Outboard Motor If you or the owner is not famil- ting after flushing the engine.

When flushing the engine with the boat in Page 61 Maintenance Yamaha genuine parts and accessories are available from your Yamaha dealer. Page Maintenance Chart When operating in salt water, turbid or muddy water, the engine should be flushed with clean water after each use. Initial Every 50 hours Item Page Checking Fuel System Check the fuel lines for leaks, crack, or mal- 1. Spark plug gap function.

If a problem is found, your Yamaha 2. Spark plug I. Page Checking Fuel Filter Yamaha dealer. Verify whether the idle speed is set to specification. For idle speed specifica- tions, see page Page 67 Con- install the drain screw.

Consult Drain screw tightening torque: your Yamaha dealer if the problem can- If any leaks are found, consult your Yamaha Change the oil more often when operating dealer. Page Checking Propeller Tilt the outboard motor down.

Page Removing The Propeller The propeller will then eration and be lost. If this happens, the shear pin must be replaced. Apply Yamaha marine grease or a cor- rosion resistant grease to the propeller EMU Removing the propeller shaft. Otherwise, the outboard could suddenly lower. NOTE: Tilt up the outboard and then push-in the tilt stop levers to support it. Otherwise, the outborad could suddenly lower. NOTE: Tilt up the outborad motor and press-in the tilt stop levers positively until they come to the position Add fluid if the level is below the brim.

Remplir : 1. Repeat this procedure so the tilt ram goes up and down several times. Replacement steps 1 To remove the spark plug cap turn it counterclockwise. Oil pressure switch continuity pres- sure Removing Steps 1 Grip the armature assembly in a vise.

Commutator undercut limit 0. Kontrollieren: 2. Thermo heater plunger projection maximum length: 14 - 15 mm 0. NOTE: Remove all metal particles with compre- ssed air. Brush length limit 3 mm 0. Messen: 5. Mesurer : 5. The battery is charged and its specific gravity is within specification. There are no incorrect wiring connections. Toutes les connexions de fils sont correctes.

No hay conexiones incorrectas de cables. The starter motor cranks the engine, but no firing takes place in the cylinder. Der Motor springt nur schwer an. El motor de arranque gira, pero no hay encendido en el cilindro. Printed in Japan Sep. Print page 1 Print document pages. Rename the bookmark. Delete bookmark? Cancel Delete. Delete from my manuals? Sign In OR. Don't have an account? They however can guide a user to take apart and rebuild an outboard engine in a strip-down and rebuild manner.

Its often supplied along with the purchase of an outboard. It is important for the long-term health of your Yamaha outboard and your safety by large that you service your vehicle whenever you can in between the regular maintenance intervals. These manuals are thus the proper guides to you receiving the best you can from your outboard by giving you detailed step by step guidelines on how to best maintain the impeccability of your motor.

Get the right outboard manual and have yourself the best boating experience! Owners manual Factory service Manuals Repair Manuals Owners workshop Manuals A Yamaha outboard motor is a purchase of a lifetime and is the highest rated in reliability.

Factory Service Manuals These are manuals that are made available by the manufacturers which give guidelines on servicing, maintenance and the repair of the outboard engine. Model Name F90TR. NOTE: If water tube seal stayed on water tube inside of drive shaft housing when gear housing was removed, pull water tube seal from water tube.

NOTE: Newer models will not have the isolators installed on the water pump. Replace water tube seal, if damaged. Remove 4 screws 2 on each side of water pump housing , washers, and isolators. Remove cover. Replace cover if thickness of steel at the discharge slots is 0.

Lift impeller, drive key, and gasket from drive shaft. Inspect impeller. Replace impeller if any of the following conditions exist:. Remove plate and gasket. Replace plate if groove s other than impeller sealing bead groove in plate are more than 0. Remove water pump base using flat screwdrivers to lightly pry up on base. With propeller shaft horizontal, pull carrier using tool shown to break seal with gear housing. Take care not to lose cam follower or 3 metal balls in end of propeller shaft.

Remove propeller shaft from bearing carrier.