MasterCraft 2014 14v, Руководство пользователя

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Page 5-16 2014 MasterCraft Owners Manual • Preparation
An engine that is under-revving is “lug-
ging.” This places a tremendous load on the
pistons, crankshaft and bearings and can
cause detonation, piston seizure and other
engine damage, which will not be covered
under warranty.
Engines should always be operated within
engine manufacturer guidelines. Failure to
do so may cause significant damage to the
engine and drive train and is not covered
under warranty!
Elevation and weather also have a very
noticeable effect on the wide-open-throttle
power of an engine. Since oxygen gets
thinner as elevation increases, the engine
begins to starve for air. Humidity, baromet -
ric pressure and temperature have a notice-
able effect on the density of air since heat
and humidity thin the air.
This phenomenon can become particu-
larly apparent when an engine is propped
for use on a cool, dry day in spring and
then is operated on a hot, humid day in
summer, and does not have the same per -
formance. Although some performance can
be regained by dropping to a lower-pitch
propeller, the basic condition still exists.
The propeller is too large in diameter for
the reduced power output. An experienced
marine dealer can determine how much di-
ameter to remove from a lower-pitch pro-
peller for specific high-elevation locations.
MasterCraft’s engine manufacturer sug-
gests that consumers consult with the dealer
from whom the boat was purchased regard-
ing the best propeller for the application in
which the boat will primarily be run. How -
ever, be aware that changing the propeller
may void the warranty. Again, working with
an authorized MasterCraft dealer is your
best bet to ensure excellent performance.
Unusual Operating Conditions
If the body of water is unknown, talk
to local boaters about the type of obstacles
that may be encountered beneath the wa-
ter’s surface. Rocks, tree stumps and sand -
bars are all dangerous and damaging. Be
especially wary of rivers and man-made
lakes. Rapidly changing conditions can
cause daily changes in underwater hazards.
Stay well clear of floating debris. What
looks to be a small branch in the water may
well turn out to be an entire tree.
When traveling through weedy areas,
keep an eye on the engine temperature
gauge. Weeds caught up and blocking the
water flow through the raw water intake
or transmission cooler will cause trouble.
Also, after leaving the weedy area, shift
to neutral for a few seconds and then to
reverse for a few seconds to unwind any
weeds that may have wrapped around the
propeller.
Docking and Tie-Up
Approach the dock slowly, with the star -
board side of the boat if possible. The natu-
ral tendency to torque steer with the rotation
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