Post-Launch Checks - Yamaha WaveRunner EX 2023 Owner's/Operator's Manual

Pre-operation checks
EJU43221
Jet thrust nozzle and reverse gate check
(EX SPORT / EX DELUXE / EX LIMITED)
Check the jet thrust nozzle and reverse gate
for damage or other problem.
EJU44252
Stern drain plug checks
Loosen the stern drain plugs and remove
them, and then make sure that the plugs and
O-rings on the plugs are not damaged and
that there is no foreign material on the
threads or O-rings on the plugs. NOTICE:
Before installing the stern drain plugs,
clean the drain plug threads and the O-
rings on the plugs to remove any foreign
materials, such as dirt or sand. Otherwise,
the stern drain plugs could be damaged,
allowing water to enter the engine com-
partment. Check the O-rings on the stern
drain plugs and make sure that the plugs
are tightened securely before launching
the watercraft. Otherwise, water may
flood the engine compartment and cause
the watercraft to submerge.
2
1
1 Stern drain plug
2 O-ring
Securely install the stern drain plugs by tight-
ening them until they stop.
62
EJU44640
Hood check
Close the hood, hook the hood latches, and
check that the hood is securely closed.
[ECJ00364]
EJU40147

Post-launch checks

Perform the post-launch checks in the pre-
operation checklist while the watercraft is in
the water and the engine is running.
To perform the post-launch checks:
(1) Launch the watercraft. (See page 65 for
(2) Perform the checks and make sure that
EJU40553
Cooling water pilot outlet check
Make sure that water is discharged from the
cooling water pilot outlet while the engine is
running. (See page 33 for information on the
cooling water pilot outlet.)
1
1 Stern drain plug
1 Hood latch
information on launching the watercraft.)
there are no malfunctioning items or oth-
er problems.