Pro Boat PRB2200 V.1 - Manual (Page 8)

Section 5: The Dynamite .15S Marine Engine
8
Water-Cooled Engine
Because the Dynamite® 15S engine is water-cooled
and not aircooled, 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 to make sure that
the water is reaching the engine head. 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
The Dynamite .15S engine comes equipped with
the Dynamite 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 Section 2 of the
Dynamite .15S instruction manual.
Note: When using the pull-starter,
never pull the rope out to its
full length as doing so can cause
damage and the rope may not
retract. Quick, short pulls of the
starter rope are the best technique
to use with the pull-starter.
If the pull-starter becomes very difficult to pull, the
engine may be hydro-locked. Excessive fuel between
the head and piston will not let the piston travel
to TDC (Top Dead Center). Loosen the glow plug
one turn and try to start the engine. If the engine
starts, re-tighten the glow plug with the attached
glow driver while the engine is running. If you are
still unable to get your engine to start, refer to the
Troubleshooting Guide (page 8) in this manual.
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.
Richer
High-Speed
Needle Valve
Low-Speed
Needle Valve
Leaner
Higher Idle
Idle
Adjustment
Screw