Yamaha Waverunner VXS VX1800, Service Manual

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Periodic service
3-6
TIP:
Be careful not to get water or any other foreign
substances in the spark plug holes.
2. Clean the electrodes “a”.
3. Check the electrodes “a”. Replace the
spark plug if damaged or worn.
4. Measure the spark plug gap “a”. Replace if
out of specification.
5. Install the spark plugs, and then tighten
them to the specified torque.
TIP:
Before installing a spark plug, clean the gasket
surface and spark plug surface.
Battery and battery lead check
Battery electrolyte is poisonous and dan-
gerous, causing severe burns, etc. Electro-
lyte contains sulfuric acid. Avoid contact
with skin, eyes or clothing.
Antidotes
External: Flush with water.
Internal: Drink large quantities of water or
milk. Follow with milk of magnesia, beaten
egg or vegetable oil. Call physician immedi-
ately.
Eyes: Flush with water for 15 minutes and
get prompt medical attention.
Batteries produce explosive gases. Keep
sparks, flame, cigarettes, etc., well away. If
using or charging the battery in an en-
closed space, make sure that it is well ven-
tilated. Always shield your eyes when
working near batteries.
KEEP OUT OF THE REACH OF CHILDREN.
• Be careful not to place the battery on its
side.
• Make sure to remove the battery from the
battery compartment when adding bat-
tery electrolyte or charging the battery.
• When checking the battery, make sure the
breather hose is connected to the battery
and not obstructed.
1. Remove the battery.
When removing the battery, disconnect the
negative battery lead first.
2. Check the battery electrolyte level. If the
level is at or below the minimum level mark
“a”, add distilled water until the level is be-
tween the maximum level mark “b” and the
minimum level mark “a”.
Spark plug (NGK)
LFR6A
Spark plug gap
0.8–0.9 mm (0.031–0.035 in)
Spark plug
25 Nm (2.5 kgf·m, 18.4 ft·lb)
a
a