Post-Operation Checks - Yamaha AR240 HO Owner's Manual

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O
peratiOn
POST-OPERATION
CHECKS

POST-OPERATION CHECKS

These post-operation procedures are
developed to help preserve the long-
term appearance and reliability of your
boat. Perform these procedures as
soon as possible after the boat is loaded
back on the trailer after the day's use.
Some owners prefer to moor their boat
seasonally, rather than keeping it on
the trailer between uses. Extended
mooring is not recommended. Proper
flushing of the cooling system on each
engine is not possible with the boat in
the water. In addition, conditions such
as stray electrical voltage in the wa-
ter, marine organisms, and saltwater
corrosion can adversely affect the life
of many boat components. NOTICE:
Leaving the boat in the water for
extended periods will accelerate
the rate of normal deterioration of
the jet pump components, sacrifi-
cial anodes, hull finish and other
components.
If you do decide to moor your boat, be
sure to remove it from the water peri-
odically to clean the hull and jet pump
area. The frequency of maintenance
required will depend upon whether the
water is salt or fresh and other local
water conditions.
1) After putting the boat on the trailer,
flush cooling system on each en-
gine to prevent the cooling system
from clogging up with salt, sand, or
dirt. Refer to page 4-1 for the cool-
ing system flushing procedure.
2) Drain residual water from the
exhaust system by starting the en-
gine, then alternately pushing the
control lever up to half throttle and
back to idle for 10 to 15 seconds.
NOTICE: Never run the engine at
full throttle or for more than 15
seconds while the boat is out of
the water. The engine may over-
heat and / or seize.
3) Wash down the hull, helm, and both
jet drive units with fresh water.
4) Open the rear platform hatch and
remove the clean-out-port caps to
let any water drain that has pooled
on them. If the boat will be stored
on the trailer nearby, leave the caps
out until you prepare to launch the
boat again. If the boat will be trans-
ported on the trailer any distance,
temporarily reinstall the caps and
close the platform hatch until you
get home. Open the hatch again
when you arrive and remove the
caps as before. Leave the caps
loose until you plan to transport the
boat on the trailer again. NOTICE:
Leaving the caps out when you
are not using or transporting
the boat helps keep them from
becoming stuck in the clean-out
ports. See page 5-5 for more in-
formation.
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