Maintenance
the screws firmly.
EMU29312
Inspecting and replacing anode(s)Yamaha outboard motors are protected from corrosion by sacrificial anodes. Inspect the external anodes periodically. Remove scales from the surfaces of the anodes. Consult a Yamaha dealer for replacement of external anodes.
ECM00720
NOTICE
Do not paint anodes, as this would render them ineffective.
TIP:
Inspect ground leads attached to external anodes on equipped models. Consult a Yamaha dealer for inspection and replacement of internal anodes attached to the power unit.
ZMU01901
ZMU02559
EMU29322
Checking battery (for electric start models)EWM01900
WARNING
Battery electrolytic fluid is poisonous and caustic, and batteries generate explosive hydrogen gas. When working near the battery:
●Wear protective eye gear and rubber gloves.
●Do not smoke or bring any other source
of ignition near the battery.
Refer to page 14 for detailed safety information about batteries.
The procedure for checking the battery varies for different batteries. This procedure contains typical checks that apply to many batteries, but you should always refer to the battery manufacturer’s instructions.
ECM01920
NOTICE
A poorly maintained battery will quickly deteriorate.
1.Check the electrolyte level.
2.Check the battery’s charge. If your boat is equipped with the digital speedome- ter, the voltmeter and low battery alert functions will help you monitor the bat- tery’s charge. If the battery needs charg-
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