Maintenance56 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 theoutboard unsafe to operate.Check the fuel lines for leaks, crack, or mal-function. If a problem is found, your Yamahadealer or other qualified mechanic should re-pair it immediately.Checkpoints Fuel system parts leakage Fuel line joint leakage Fuel line cracks or other damage Fuel connector leakageEMU28990Checking fuel filterCheck the fuel filter periodically. The fuel filteris a one piece, disposable type. If foreign mat-ter is found in the filter, replace it. For replace-ment of the fuel filter, consult your Yamahadealer.EMU29040Inspecting idling speedWARNINGEWM00450 Do not touch or remove electrical partswhen starting or during operation. Keep hands, hair, and clothes away fromthe flywheel and other rotating partswhile the engine is running. 2-hp models: The propeller rotateswhenever the engine is running. Do notmove the throttle control lever from thestart position during warm-up. The boatcould unexpectedly start to move, whichcould result in an accident.CAUTION:ECM00490This procedure must be performed whilethe outboard motor is in the water. A flush-ing attachment or test tank can be used.A diagnostic tachometer should be used forthis procedure. Results may vary dependingon whether testing is conducted with theflushing attachment, in a test tank, or with theoutboard motor in the water.1. Start the engine and allow it to warm upfully in neutral until it is running smoothly.2-hp model: Warm the engine with thethrottle in the start position or less. If theoutboard is mounted on a boat, be surethe boat is tightly moored.