Maintenance
117
Checking the sacrificial anode
An aluminum alloy anode is mounted on the
jet pump outlet on your boat. Galvanic corro-
sion can damage metal surfaces below the
waterline on any boat, particularly in salt wa-
ter. This sacrificial anode is designed to erode
first, before metal components of your jet
pump outlet are seriously damaged.
1 Anode
Check the anode each time the boat is re-
moved from the water. It is normal for it to look
corroded and rough. Replace the anode when
it is approximately one half of its original size.
NOTICE
● Failure to replace the anode when nec-
essary can result in permanent damage
to the jet pump outlet and other metal
components on the boat.
● Never paint the anode. A coating of any
kind will prevent the anode from func-
tioning, exposing other components to
galvanic corrosion damage.
Replacing the sacrificial anode
When the anode has eroded to approximately
one half its original size, it should be replaced.
Ask a Yamaha Boat Dealer for this service or
you can do it yourself if you have a torque
wrench of the proper type.
(1) Unscrew the two mounting bolts that se-
cure the anode to the jet pump outlet.
(2) Clean the mounting-bolt threads, and
then coat them with Loctite
®
242, avail-
able from a Yamaha Boat Dealer.
(3) Install the new anode. Tighten the mount-
ing bolts to the specified torque.
Maintaining the battery
WARNING
Battery electrolyte is poisonous and dan-
gerous, causing severe burns, etc. It con-
tains sulfuric acid. Avoid contact with
skin, eyes or clothing.
Antidote:
External - Flush with water.
Internal - Drink large quantities of water or
milk. Follow with milk of magnesia, beaten
egg or vegetable oil. Call physician imme-
diately.
Eyes - Flush with water for 15 minutes and
get prompt medical attention.
A battery produces explosive gases. Keep
sparks, flame, cigarettes, etc., away. Venti-
late when charging or using in enclosed
space. Always shield eyes when working
near battery.
Keep out of reach of children.
1
Tightening torque:
Anode bolt:
7 Nm (0.71 kgf-m, 5.2 ft-lb)
SportsBoat.book Page 117 Monday, October 31, 2011 4:12 PM
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