Maintenance

●Check for fuel leakage regularly.

●If any fuel leakage is found, the fuel sys- tem must be repaired by a qualified me- chanic. Improper repairs can make the outboard unsafe to operate.

Check the fuel lines for leaks, crack, or mal- function. If a problem is found, your Yamaha dealer or other qualified mechanic should repair it immediately.

Checkpoints

●Fuel system parts leakage

●Fuel line joint leakage

●Fuel line cracks or other damage

●Fuel connector leakage

EMU28990

Checking fuel filter

Check the fuel filter periodically. The fuel filter is a one piece, disposable type. If foreign matter is found in the filter, replace it. For replacement of the fuel filter, consult your Yamaha dealer.

EMU29040

Inspecting idling speed

EWM00450

WARNING

●Do not touch or remove electrical parts when starting or during operation.

●Keep hands, hair, and clothes away from the flywheel and other rotating parts while the engine is running.

●2-hp models: The propeller rotates whenever the engine is running. Do not move the throttle control lever from the start position during warm-up. The boat could unexpectedly start to move, which could result in an accident.

ECM00490

CAUTION:

This procedure must be performed while the outboard motor is in the water. A flushing attachment or test tank can be used.

A diagnostic tachometer should be used for this procedure. Results may vary depending on whether testing is conducted with the flushing attachment, in a test tank, or with the outboard motor in the water.

1.Start the engine and allow it to warm up fully in neutral until it is running smoothly. 2-hp model: Warm the engine with the throttle in the start position or less. If the outboard is mounted on a boat, be sure the boat is tightly moored.

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