Pro Boat PRB2800T - Manual (Page 6)

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Water-Cooled Engine
Because the Pro Boat .18 engine is water-cooled
and not air-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 lake to
make sure that water is flowing through the engine
head. If the water does not reach the head to cool
it, the engine will overheat and fail. This will cause
permanent damage to the engine.
Carburetor
High-Speed
Needle Valve
Faster Idle (Clockwise)
Slower Idle (Counterclockwise)
Leaner Fuel Inlet
(Adjustable)
Low-Speed
Needle Valve
Leaner
Idle Stop
Screw
The carburetor is adjusted at the factory. This
setting should be approximately 1
3 ⁄
4
–2 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 carburetor, see the engine
instruction manual.
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.
Operation
Attach a fully charged glow driver to the glow plug.
Turn on the radio system and insert the starting
wand into the Tiger Drive; actuate the starting
switch until the engine begins to run.
Note: Stop operation immediately
if the engine enters a hydro-locked
condition as serious engine damage
may occur if operation is continued.
Remove the glow plug, invert the
boat and operate the starter to
remove raw fuel before resuming
normal operation.
You may have to “blip” the throttle on the
transmitter (applying throttle on/off) while trying to
start the engine. New engines are harder to start
because of the tight piston/sleeve fit. Never start
an engine at 1⁄2 to full throttle, as this will cause
over-revving which may cause premature wear and
breakage.
During the first tank of fuel, advance the idle via the
idle adjustment screw more than normal to prevent
stalling at idle due to the rich fuel mixture for
break-in. Pinch the fuel line nearest the carburetor
to stop the engine.
Section 5: The Pro Boat .18 Marine Engine Section 6: Starting the Engine