AquaCraft Miss Vegas - Manual (Page 6)

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6. Check that the throttle is 1/8 open from the fully closed
position. Pull the handle of the recoil starter in quick, short
pulls. Repeat, if necessary until the engine fires. DO NOT
PULL THE RECOIL HANDLE MORE THAN 381mm [15"];
DOING SO MAY DAMAGE THE PULL-START.
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7. With the engine started, remove the glow starter after
10-15 seconds.
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8. Put the cowl back in place and slide the latches toward
the rear of the boat to secure it in place. BE CAREFUL NOT
TO TOUCH THE SPINNING PROP!
If the engine fails to start, refer to the ENGINE
TROUBLESHOOTING FLOWCHART on page 11.
FUELS
Use nitro fuels that are specially formulated for model
engines. Typically this would be 10-30% nitromethane car or
boat fuel.
To insure long life and good performance from your AquaCraft
.18 engine, you MUST break-in the engine. The break-in period
is critical for long life of the internal parts of the engine. This
should be done over the first 5 or 6 tanks of fuel.
SOME THINGS TO REMEMBER DURING BREAK-IN
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1. Use the same fuel that you will use for normal running.
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2. Resist the urge to accelerate and decelerate the boat quickly.
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3. Break-in puts stress on the glow plug and you can burn
it out during break-in. Make sure you have an extra plug or
two on hand.
HOW TO STOP YOUR ENGINE
Just as squeezing the throttle trigger on your transmitter
increases power, pushing the trigger the opposite way
decreases power. Pushing the throttle trigger forward should
close off the throat of the carburetor completely, cutting off air
intake and stopping the engine.
THE FIRST TANK
Your first tank of fuel should be used to run the boat at a very
rich high-speed needle valve setting. This allows the fuel to
carry as much oil as possible into the engine to lubricate the
internal parts during break-in.
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1. Open the needle valve 2-1/2 turns out from fully closed
(counterclockwise). This is factory set already, but check it to
make sure. When closing the high-speed needle, close the
needle until you feel some resistance. DO NOT overtighten
or you will damage the carburetor.
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2. Start the engine.
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3. Once the engine is started, open the high-speed needle
valve around 1/8 turn at a time, finding the setting where the
engine just barely runs. This may take a few times adjusting
the needle. The engine will perform sluggishly and stall from
time to time – this is normal during the break-in process.
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4. Place the boat in water and run the engine at a medium
speed, periodically accelerating and decelerating.
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5. Continue running the engine until the tank is almost out
of fuel. Do not allow the engine to run out of fuel. This leans
out the engine and can cause overheating.
TANKS 2-6
Turn in the needle valve (clockwise) around 1/8 turn from the
previous setting. You should notice that the engine performs
better during each run. After the 6
th tank, you should be near
to the peak performance of the engine.
Ways To Ensure A Long Life For Your Engine.
• Keep your engine clean. Dirt will act as insulation on an
engine. It will not be able to shed heat as easily.
• Do not over-lean your engine.
• Do not run your engine without a propeller.
• Do not overheat the engine. This goes along with keeping
it clean and not over-leaning the engine.
• Make sure that you use a fuel from a reputable
manufacturer that is labeled as model engine fuel.
• Avoid using old fuels in the engine. Always run all of the
fuel out of the engine. After running for the day, use after
run oil and work it into the engine by pulling the pull-
starter 2-3 times.
• Do not use silicone sealer on the engine joints. Silicone
sealer contains acetic acid, which is corrosive if it gets
inside your engine.
• Store your engine someplace where it will not be
subjected to extreme temperature changes.
BREAKING IN THE ENGINE
Carburetor Partially Open
6