User Manual

4
Small: Develops smooth linear power and is easier to
control than a larger insert. Best suited for medium
to low traction conditions on small to average size
tracks.Alsooffersthebestfuelmileage.
Medium:Increasedpowerforhightraction,mediumto
large size tracks with a slight decrease in fuel mileage
over the small insert.
Large: Offers the most explosive power and acceleration
with high-fuel consumption. Used for large and fast
high-traction tracks.
STARTING YOUR DYNAMITE ENGINE FOR
THE FIRST TIME
The first start of your engine is the most critical time of
the engine’s life, dictating how well it will perform and
maximizing its life expectancy.
Before you start your Dynamite engine for the first
time, make sure you have read all instructions and
precautions in this manual. Pay close attention to the
tank-by-tank break-in instructions in the next section,
and make sure you have read and understood them
before you run your engine.
Itisrecommendedbutnottotallynecessarytousea
heat gun to heat the engine to 160–180 degrees before
you start the break-in process. Your engine must be at
room temperature (70°F or 21° C) or above the first time
youstartit.Ifit’scoolerthanroomtemperatureoutside,
remove all fuel and keep your vehicle indoors until you’re
readytostartitandthentakeitoutside.Ifit’scolderthan
45 degrees, special considerations should be made.
We do not recommend running Dynamite engines at
temperatures below 35 degrees. See the cold weather
break-in tips section for more information.
FACTORY NEEDLE SETTINGS
Your carburetor is preset at the factory to give the correct
air-to-fuel ratio and idle speed for break-in. Do not
adjust the carburetor unless you observe a poor running
condition that requires correction.
NON-PULL START AND PULL/SPIN START ENGINES:
For the non-pull start version engine, we recommend
using the DYN5610 Ready-Start Universal starter box in
order to handle the high compression of the Dynamite
engine. For spin start engines we recommend the
DYN5645 Spin Start Hand Held Starter.
You may need to “blip” the throttle on the transmitter
(applying throttle on/off) while trying to start the engine,
as new engines are more difficult to start due to the tight
piston/cylinder fit.
1. Installtheengineintoyourvehicle.
2. Turn on the radio system.
3. Make sure the throttle trigger on the transmitter is in
the idle (neutral) position and the carburetor is in the
idle position also.
4. Connect the glow igniter to the engine.
5. A.Fornon-pullstartversionengines,placethevehicle
on a starter box and engage the starter.
B. For spin start version engines, slide your hand
under the strap of the starter so that your index finger
is on the switch at the bottom. Place the machined
end of the starter shaft into the matching hex socket
in the backplate of the engine. Holding the starter
securely, press on the switch button and the engine
should turn over and start up.
6. Watch for fuel moving through the fuel line up to
the carburetor. Pay close attention as the fuel moves
veryfast.Ifthefueldoesn’tmovethroughtheline
within 5 seconds, prime the engine by briefly (one or
two seconds) covering the exhaust outlet with your
finger until the fuel is just visible moving through the
carburetor fuel line. Watch carefully!
 Iftheengineisprimedtoolong,itwillfloodwithfuel
and stop turning.
Should the engine become difficult for your starter
box or hand held starter to turn over, the engine may
be flooded (hydro-locked).The presence of excess
fuel between the cylinder head and piston will not
allow the piston to travel through its full range of
compression, effectively “hydro-locking” the engine.
Should this occur, remove the glow igniter from the plug.
Using a glow plug wrench (DYN2510), remove the glow
plug and turn the model upside down and rotate the
flywheel to clear out the excess fuel, reinstall the glow
plug and start again.
Note: Your Dynamite engine doesn’t usually require
priming.Ifyoudoneedtoprimeyourengine,watch
the fuel line carefully to avoid flooding your engine.
Anothercommonoccurrencewithnewenginesisfor
the piston to become stuck at the top of its travel in
the sleeve. This occurrence is completely different from
hydro-locking and is caused by the tight fit of the piston
andsleevewhentheengineisnew.Inordertorelieve
the stuck piston use a flat blade screwdriver through the
flywheel’s access hole in the chassis in order to pry the
flywheel though its rotation.
This sticking issue should be completely eliminated by the
break-in procedure.
7. Once fuel reaches the carburetor, the engine should
quickly start and idle.
8. Disconnect the glow igniter from the model.
9. Proceed with the engine break-in.
10. Do not rev your engine with no load (wheels off
the ground).