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Water-Cooled Engine
Because the Nitro engine is water-cooled,
make sure that you do not run the engine
for an extended amount of time outside of
the water. Continuously monitor the water
outlet when the boat is running in the water
to make sure that the water is exiting the
water outlet. If the water does not reach the
head to cool it, the engine will overheat and
fail. This could cause permanent damage to
the engine.
Pro Mix Carburetor
High-Speed
Needle Valve
Idle
Adjustment
Screw
Higher Idle
The Nitro engine comes equipped with the
Pro Mix Carburetor. Each Pro Mix Carburetor
is pre-adjusted at the factory. This setting
should be approximately 3-1⁄2 turns open
for the high-speed and 2-1⁄2 turns open for
the low-speed needle. This should give you a
slightly "rich" mixture of fuel to the engine.
This setting is the safest way to break in your
engine. For further details regarding the Pro
Mix Carburetor, please consult the included
engine manual.
Starting the Nitro Engine
Richer
Low-Speed
Needle Valve
Leaner
Hand-Held Starter
1. Fully charge a 7.2V sub-C battery pack and
install it in the starter as shown.
2. Slide the starting wand (which is stored
inside the battery cover) into the end of
the starter, then replace the battery cover.
Adjust the throttle trim on the transmitter
so that the throttle barrel is 1/8-inch
(3mm) open.
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