Duratrax WarHead EVO Скачать руководство пользователя страница 7

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HIGH-SPEED NEEDLE
The “high-speed” needle
is sticking up from the
carburetor. This controls the
fuel to air mixture of the
carburetor. The needle is
pre-set for break-in from
the factory at 4-1/2 turns
out from fully closed. Once
the engine is broken-in, the
high-speed needle would
typically run from 4 to 4-1/4
turns out from closed, depending on the weather, humidity and
altitude above sea level. To richen the mixture turn the needle
counterclockwise. To lean it, turn the needle clockwise.

LOW-SPEED NEEDLE
The “low-speed” needle is
located on the side of the
carburetor. It controls the
fuel mixture at low throttle
settings/idle and is preset
from the factory at 12-1/2
turns from fully closed while
holding the carburetor
open. Low speed needle
adjustment should only be
done after break-in. There
is a simple way of adjusting
the low-speed needle correctly called the “pinch test.” With
the engine at idle, pinch the fuel line and listen to how the
engine speeds up or slows down. If the engine increases its
speed for about 2 or 3 seconds and then loses speed, the
needle is set correctly. If the engine loses RPM quickly, it is
set too lean and the low-speed needle needs to be opened
(counterclockwise) to richen the mixture. Pinch again to
check the mixture. If the engine takes longer than 4 seconds
to slow down, lean (clockwise) the low-speed needle and
then pinch again to check the mixture.

IDLE STOP SCREW
The “idle stop” screw is
located on the backside of
the carburetor.This increases
or decreases the idle speed
without changing the fuel
mixture. The barrel should be
approximately 1 mm from
fully closed.

IMPORTANT! To insure long life and good performance from
your 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 tanks of fuel.

Before running the engine, read the manual and watch the
assembly and engine tuning video that came with this kit.

STARTING THE ENGINE

IMPORTANT! Your radio system must ALWAYS be turned
on and the transmitter antenna fully extended when running
the engine!

1. Fill the fuel tank.
2. Charge the 6-cell battery (not included) for the Kwik Pit

Super Start. Install the battery into the unit and connect it
to the starter. Press the button on the starter to check that
it is functioning properly.

3. Attach the glow starter to the glow plug.
4. With the throttle at idle, start the engine using the Kwik

Start System.

Sometimes it is helpful to start the engine at around half
throttle. When the engine starts, immediately return the
throttle to idle.

IMPORTANT! FIXING A FLOODED ENGINE
If the engine is difficult to turn over with the Super Start,
especially if it is brand new, loosen the glow plug a half turn
before starting the engine. This allows some compression to
escape, but the engine will still start. Make sure you tighten
the glow plug after the engine starts. If the Super Start is still
having problems turning the engine over, it is flooded – there
is too much fuel inside the engine. Remove the glow plug,
then turn the truck upside down and run the Super Start for 5
or 6 seconds. This will clear the engine of fuel, and you will
notice the engine turns over easier. Replace the glow plug
and repeat the starting procedure.

STOPPING THE ENGINE
Use the included fuel line clip (located on the fuel line going to
the carburetor) to shut the engine off. Close the clip and within
a few seconds, the engine will shut off. Leave the clip closed
until you are ready to run the engine again. Never place your
finger over the exhaust to stop the engine. This could
result in serious burns on your finger. It also causes fuel
to back up in the engine, making it harder to start the next
time you run your Warhead EVO.

UNNING

THE

ENGINE

TUNING GUIDE

BARREL 1mm
FROM FULLY
CLOSED

IDLE STOP SCREW