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SportsBoat_F4A14.book Page 90 Monday, May 17, 2021 1:01 PM

Pre-operation checks

off the engines, remove the main switch
key, and then remove the engine shut-off
cord (lanyard) from the engine shut-off
1
switch.

Fuel system checks
Check the fuel filler hoses and joints in the en-
gine compartment for damage, looseness,
and signs of leaking. At least annually, or if a
problem is suspected, check the fuel tank
and fuel filler hoses and clamps. Have a
1 Access port cap
Yamaha Boat Dealer check the fuel tank and
(3) Close the rear platform hatch. fuel filler hoses and clamps. WARNING! If
there are signs of leaking fuel, do not op-
Jet intake checks erate the boat until the source of the fuel
Carefully check the jet intakes under the boat leak is found and corrected. Gasoline and
for weeds, debris, or anything else that might its vapors are highly flammable and explo-
restrict the intake of water. If the intakes are sive.
clogged, cavitation could occur, reducing jet
thrust, and possibly damaging jet pump Engine oil level check
parts. Make sure that the engine oil level is between
the minimum level mark and maximum level
mark on the dipstick. (See page 80 for infor-
mation on checking the engine oil level.)

1
1
1 Jet intake
In some cases, the engines may overheat be-
cause of a lack of cooling water, and damage 1 Oil tank filler cap/Dipstick
could result. If the jet intakes are clogged,
clean them. (See page 126 for information on
the jet intakes.) WARNING! Rotating parts
could cause severe injury or death. Before
attempting to remove weeds or debris
from the jet intakes or impeller areas; shut

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