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SportsBoat_F5K13.book Page 138 Tuesday, June 13, 2023 5:43 PM

Operation and handling requirements

Engine oil requirement
Engine oil
NOTICE
Use only 4-stroke engine oil. Usage of 2-
stroke engine oil could result in severe en-
1 gine damage.

Select an oil grade according to the average
2 temperatures in the area where the boat will
be used.
1 Fuel tank filler cap
2 Fuel tank filler cap button Recommended engine oil:
YAMALUBE 4W
(4) Slowly add fuel to the fuel tank. Recommended engine oil type:
SAE 10W-30, 10W-40, 20W-40, 20W-
Fuel tank capacity:
50
284 L (75.0 US gal, 62.5 Imp.gal)
Recommended engine oil grade
(5) Stop filling when the fuel just becomes (3-star models):
visible in the bottom of the filler tube. Do API SG or higher
not “top off” the tank, because gasoline Recommended engine oil grade
could spill out. (4-star models):
(6) Wipe up any spilled fuel immediately. API SJ or higher
(7) Close the fuel tank filler cap by pushing it
3-star models
until it locks in place. Make sure that the
fuel tank filler cap is securely closed.
Engine Med RX Fuel Additive
As the fuel mixture burns in your engine’s
combustion chambers, carbon deposits are
left behind. Over time, these deposits can re-
duce performance and even cause engine
damage. Marine engines tend to run at lower
operating temperatures than other engines,
making them more likely to accumulate these
harmful deposits. Engine Med RX, available
from your Yamaha Boat Dealer, is formulated
to remove existing deposits and, when used
continuously, prevent new ones from form-
ing, while also helping to keep fuel injectors
and other fuel system components clean for
proper performance and longer engine life.

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