Yamaha 40TLRC Owner's Manual
![Yamaha 40TLRC manual cover](/images/cc3762e22c5058cd73ab9064/thumbs/thumb175x175.webp)
To start the Yamaha 40TLRC, ensure that the fuel tank is full and the fuel line is connected properly. Turn the ignition key to the 'Start' position while slightly advancing the throttle. Once the engine starts, return the key to the 'On' position.
If the engine won't start, check the fuel level, ensure the fuel line is connected, and inspect the spark plugs. Also, verify that the kill switch is in the 'Run' position. If problems persist, consult the owner's manual for further troubleshooting steps.
It's recommended to change the oil every 50 hours of operation or at least once per boating season, whichever comes first. Regular oil changes help maintain engine performance and longevity.
Use unleaded gasoline with a minimum octane rating of 86. Avoid ethanol-blended fuels exceeding 10%, as they can cause damage to the engine components.
To prevent corrosion, rinse the outboard thoroughly with fresh water after each use in saltwater. Apply a corrosion inhibitor spray to exposed metal parts and ensure the anodes are in good condition.
Signs of a failing water pump include overheating, reduced water flow from the telltale outlet, and unusual noises. Regular inspection and replacement of the impeller every 100 hours or annually is recommended.
To inspect the propeller, remove it and check for damage such as dings, cracks, or bent blades. Ensure the propeller shaft is straight and free of fishing line or debris. Re-grease the shaft before reinstallation.
If the engine is overheating, stop immediately and check for blockages in the cooling water intake. Inspect the water pump and impeller for damage. Ensure the cooling system is functioning properly before resuming operation.
For winter storage, run a fuel stabilizer through the engine, change the oil, and fog the cylinders with fogging oil. Store the outboard in an upright position in a dry, cool place. Cover it to protect against dust and debris.
Before each use, check the fuel and oil levels, inspect the propeller, and ensure the cooling water intake is clear. Verify that the throttle and steering controls are functioning properly and conduct a general visual inspection for any signs of damage.