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6) Operate the forward/reverse shift button on the transmitter.

With the shift button pushed down, the truck will only operate
in forward motion. Pushing up on the shift button shifts the
transmission into reverse. Check for normal operation of the
shifting servo. In reverse, the shifting servo should extend the
transmission shifter from the transmission housing.

PREPARING TO RUN

• INSTALLING THE EZ-START BATTERY

Use tie wraps to secure 

fully-charged

7.2 volt

battery back to the 
EZ-Start control box.
Plug the battery connec-
tor into the face of the
control box. The plug
will only go in one way.

• ANTENNA SETUP

Locate the plastic tube and
the antenna tip (supplied in
the bag with your instruc-
tions). Insert the black
antenna wire, extending
from the receiver housing,
into one end of the tube and
push it all the way through.
Insert the tube
into the antenna
mount on top of
the receiver
housing. Fold the

remaining antenna wire over the top of the
antenna tube and secure it with the vinyl
antenna tip. Under no circumstances should
you ever cut your antenna wire. Its length is
specially tuned to the frequency band, and
cutting it could severely shorten the radio’s
range. On top of the transmitter, fully extend
the chrome telescopic antenna.

GLUING THE TIRES

The truck tires should be glued to the rims to prevent

them from spinning inside the tire.

CAUTION: Wear eye protection
to prevent injury from glue
spattering into your eyes.

1. Glue the tires to the rim by
pulling the tire back from the rim
and placing a drop of thin CA
glue onto the bead.

2. Quickly re-seat the tire bead into the rim and allow to dry.
3. Repeat step 1 at several points around the tire until it is 

secured to the wheel.

4. Allow the CA glue to completely cure before driving the vehicle.

NOTE: The acetone in finger nail polish remover should dis-
solve any glue that may come in contact with your fingers.

STARTING THE ENGINE    

STEP 1: INSTALL THE AIR FILTER

Remove the protective cap from the car-

buretor air intake. Install the rubber air filter
base and pre-lubed foam element onto the
carburetor intake. The foam air filter ele-
ment may be cleaned and reused.

Always

be sure the filter element is oiled prop-

erly before running the engine.

For the

best filtration, use the type of oil made for
foam air filters. It should be available local-
ly from motorcycle shops and small
engine repair shops. Lightweight motor oil
or after-run oil may also be substituted. When the element gets
dirty, clean it with dish soap and rinse. Next, saturate it with oil
and then squeeze out the excess oil. For extremely dusty condi-
tions, special two or three-stage, pre-lubed filters are available
from Traxxas (Part #4062 and #4063).

STEP 2: FILL THE FUEL TANK

Use a small fuel bottle or bulb to put fuel into the tank. Only fill

the tank to the bottom of the fill neck. The T-Maxx can carefully be
refueled while the engine is running.

STEP 3: HIGH-SPEED MIXTURE SETTING

The high-speed mixture screw controls how much fuel enters

the engine during mid and high-speed operation. Turn the high-
speed mixture screw clockwise, by hand, until it stops 

(Do not

tighten or the needle may be damaged).

Now, turn the mixture

screw counter-clockwise 2

1

/

2

complete turns.

AIR FILTER

HIGH SPEED NEEDLE

RECEIVER

HOUSING

Contact Traxxas for assistance: 1-888-TRAXXAS. 972-265-8000 (outside USA). E-mail us at support@Traxxas.com

5

Note: Your carburetor has been factory preset 

for break-in. Do not readjust your carburetor 
settings unless you suspect a problem. The 
following steps are for reference only.

 

Summary of Contents for T-Maxx

Page 1: ...OPERATING INSTRUCTIONS MODEL 4910...

Page 2: ...se listed contact TRAXXAS at 1 888 TRAXXAS to find out if the fuel is safe for use with TRX engines FUEL BOTTLE Fuel is usually purchased by the gallon or quart so a smaller bottle with a dispensing t...

Page 3: ...FREQUENCY BAND The FREQUENCY band is the radio frequency that the transmitter uses to send signals to the model All Traxxas RTR models operate on a 27 MHZ FREQUENCY BAND CHANNEL The 27 MHZ FREQUENCY B...

Page 4: ...r weak batteries Turn the steering trim control on the transmitter to adjust the servo so that the front wheels are pointing straight ahead Check to be sure that the wheels do not turn more in one dir...

Page 5: ...until it is secured to the wheel 4 Allow the CA glue to completely cure before driving the vehicle NOTE The acetone in finger nail polish remover should dis solve any glue that may come in contact wit...

Page 6: ...malfunction with symptoms such as stalling inconsistent performance and fouled glow plugs Don t give up on it These are just break in pains that every new engine has to go through They will disappear...

Page 7: ...oes not shift into reverse check the following 1 IDLE SPEED The engine idle speed needs to be set as low as possible and still allow reliable running If the idle speed is set too high the T Maxx will...

Page 8: ...weight oil will give you the same dampening as a three hole piston with heavier oil We recommend using two hole pistons with a range of oil viscosities from 10W to 40W available from your hobby shop T...

Page 9: ...or the EZ Start connector DECALS You are now ready to apply the decals The decals have been die cut for your convenience Test the position of the decals before applying them to the body Once the decal...

Page 10: ...s If the clutch shoes are worn to the point that the clutch spring contacts the clutch bell then the shoes must be replaced STEP 11 Grip the flywheel with a pair of pliers locking pliers work best Rem...

Page 11: ...uid metal polish to buff the crankshaft journal to a bright smooth shine Rinse thoroughly with denatured alcohol and lube with after run oil STEP 24 Use the 1200 grit sandpaper and the liquid metal po...

Page 12: ...To assemble the connecting rod and piston place a drop of caster oil in the top end of the connecting rod Insert the wrist pin through the piston and the top of the connecting rod Secure the wrist pin...

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