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24 • REVO 3.3

Installing the EZ-Start Battery

1.  Press the tab in the end of the battery 

compartment door to open (A).

2.  Plug a fully charged 7.2-volt 

battery pack into the  
connector inside (B).

3.  Twist the battery two or 

three times to twirl the 
battery plug wires. This 
helps hold the wire and 
battery in place when the 
battery is installed in the 
compartment (C).

4.  Install the battery into the 

compartment and press the wires securely into place.

5.  Snap the battery compartment door back on and lock the  

end tab (D).

Using the EZ-Start

Your EZ-Start controller plugs into a 4-prong receptacle in the center of the 
bed on your Revo 3.3. When the red button on the controller is pressed, 
the EZ-Start motor begins to spin the engine and power from the control 
unit heats the glow plug. Assuming all settings and preparations are 
correct, the engine should start almost immediately.
Each of the two status indicator LEDs on the hand-
held control unit, the 

Motor 

LED and the 

Glow Plug

 

LED, should light green while starting. If either LED 
fails to light while starting, there is a fault indicated 
with that function.

If the Glow Plug LED fails to light, the glow plug may 
be bad, or the glow plug wire may be damaged or 
disconnected.

If the Motor LED fails to light and the starter fails to 
operate, then the EZ-Start is in protection mode.

Protection Mode

The EZ-Start uses Smart Start

 technology to monitor the condition 

of the system and detect failures. The controller monitors the load 
being placed on the EZ-Start motor. If the load becomes excessive, 
the system shuts off power to the motor to prevent costly damage 
to the motor and the controller. This may occur, for example, if the 
engine floods with fuel during starting. The starter spins at first but 
when excessive fuel in the combustion chamber begins to lock up the 
engine, the starter motor slows under the heavier load. This causes 
the protection circuit to shut off the power to the motor. Allow at least 
3 minutes for the starter motor to cool and the circuit to automatically 
reset before continuing. Use the time to find and eliminate the 
condition that caused the excessive load on the starter motor.

Use a Strong Starter Battery 

A weak starter battery, or one that has not been fully charged, may 
not deliver enough power to crank the engine over at the appropriate 
rpm to keep the piston from sticking at top dead center (TDC). A new 
engine will typically have a tight fit between the piston and the top of 
the sleeve. This is a tapered fit, and a tight piston sleeve fit on initial 
startup is desirable for those who want the best-performing engine. 
Make sure you are using a good quality battery pack that is fully 
charged (new batteries usually require several charge cycles to reach 
peak voltage and full capacity). This is especially important with a new 
engine that needs to be broken in. If the engine sticks at TDC, see 
page 38 for instructions on freeing the engine.

Shutting Off The Engine

Turning off the switch for the radio will not 
shut off the engine. To shut off the engine, use 
the shut-off clamp on the fuel line. Squeeze 
the clamp closed to shut off the fuel supply to 
the engine. Don’t forget to release it when you 
restart the engine.
Avoid shutting off the engine by placing your finger over the exhaust 
outlet, especially if you are through driving for the day. This will 
leave more unburned fuel in the engine that could lead to harmful 
corrosion. 

Always be careful not to touch the exhaust pipe after 

running, it can become very hot.

Using Other Chargers

Another convenient option 
for charging the included 
battery is an AC peak-
detecting charger that plugs 
directly into an AC wall 
outlet. It contains special 
peak-detection circuitry 
that automatically shuts the 
charger off when the battery 
is fully charged.

Caution

: Never use a 

15-minute timed charger to 
recharge your model’s battery 
packs. Overcharging may 
result, causing damage to the 
battery packs.

A

B

C

D

Motor

Glow  Plug

Motor

Glow  Plug

Motor

Glow  Plug

Motor

Glow  Plug

Motor

Glow  Plug

Motor

Glow  Plug

Motor

Glow  Plug

Motor

Glow  Plug

Motor

Glow  Plug

Motor

Glow  Plug

Motor

Glow  Plug

Motor

Glow  Plug

Motor

Glow  Plug

Motor

Glow  Plug

Motor

Glow  Plug

Motor

Glow  Plug

Motor

Glow  Plug

Motor

Glow  Plug

Motor

Glow  Plug

Motor

Glow  Plug

Motor

Glow  Plug

Motor

Glow  Plug

Motor

Glow  Plug

Motor

Glow  Plug

Motor

Glow  Plug

Motor

Glow  Plug

Motor

Glow  Plug

When the EZ-Start controller 
is in protection mode, wait 
at least three minutes before 
attempting to start the 
engine, to give the starter 
motor time to cool.

It’s normal for your EZ-Start 
controller to become warm  
after repeated use.

THE TRX 3.3 RACING ENGINE

5

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10

Summary of Contents for Revo 3.3 53097

Page 1: ...MODEL 53097 owner s manual...

Page 2: ...rmance and adjustment potential that Traxxas engineers designed into Revo Even if you are an experienced R C enthusiast it s important to read and follow the procedures in this manual Revo contains ne...

Page 3: ...ur question at support Traxxas com Join thousands of registered members in our online community at Traxxas com Traxxas offers a full service on site repair facility to handle any of your Traxxas servi...

Page 4: ...careful not to touch the parts especially when refueling or stopping the engine Prolonged exposure to the engine exhaust can be harmful Avoid breathing the engine exhaust Always run your Revo outdoors...

Page 5: ...10 Glow plug wrench Extra glow plug 17mm wheel wrench 1 5mm L wrench 2 0mm T wrench 2 5mm T wrench 8mm slipper clutch wrench Shock wrench 5mm turnbuckle wrench Suspension multi tool 4 way wrench Susp...

Page 6: ...ressure Line Fuel Line EZ Start Motor EZ Start Plug Bulkhead under chassis Body Mount Post Chassis Slipper Clutch under roll hoop Spur Gear under roll hoop Driveshaft Half Shaft On Off Switch Shift Ro...

Page 7: ...for the transmitter sold separately Follow the break in instructions exactly to ensure the best performing longest lasting engine 5 Install the EZ Start battery See page 24 13 Tune your engine See pag...

Page 8: ...pack NiCad batteries have very high current handling high capacity and can last up to 1000 charging cycles Good charging procedures are required to reduce the possibility of developing a memory effec...

Page 9: ...onic Shift Module to monitor and control the input and output signals for the throttle and shifting servos channels The OptiDrive monitors the voltage of the on board RX Power Pack The Function LED wi...

Page 10: ...attery pack from the model for charging Follow these steps to fully charge the receiver battery before operating your model 1 Plug the charger into a wall outlet A Choose an outlet that is in a locati...

Page 11: ...tter or other source and running out of control Your model has electronic fail safes to prevent this type of malfunction but the first best defense against a runaway model is to always turn the transm...

Page 12: ...ng shipping Here s how 1 Turn the transmitter switch on The status LED on the transmitter should be solid green not flashing 2 Turn on the receiver switch in the model The switch is located on the rec...

Page 13: ...ceiver follow these instructions Note You will need to open the receiver box to access the receiver The receiver must be connected to a 4 8 6 0v nominal power source for binding and the transmitter an...

Page 14: ...ehicle speed and controls forward and reverse shifting Controlling the shift action electronically rather than by mechanical systems reduces the number of components in the transmission The transmissi...

Page 15: ...en on again and repeat the programming steps For instructions on how to use the OptiDrive with aftermarket radio systems or to access advanced programming options visit Traxxas com Large adjustments t...

Page 16: ...premature engine wear and failure is lack of care and maintenance BREAK IN The TRX 3 3 Racing Engine is manufactured to exacting tolerances and requires a specially designed break in procedure to acco...

Page 17: ...l Carburetor Air Intake Fuel Intake High Speed Needle Idle Speed Screw Clutch Bell Crankcase Two Stage Air Filter Glow Plug EZ Start Plug Positive Wire Negative Wire Fuel Line Fuel Tank Tuned Pipe Hea...

Page 18: ...ngine s body that contains all of the running mechanical components Crankshaft The main shaft of the engine that holds the reciprocating assembly Cooling fins The cooling fins are milled into the cyli...

Page 19: ...the first level of air filtration for the engine The majority of dirt and debris will be stopped by this filter Clean re oil and replace this filter after every hour of run time Always use both the p...

Page 20: ...limitations Engines are designed to run best within a range of nitro percentages How the engine is ported the size of the combustion chamber and other factors determine how much nitro can be efficien...

Page 21: ...pull straight up 2 Remove the pre filter element 3 Clean the pre filter element by thoroughly washing the foam element in hot soapy water dishwashing detergent works well Repeat twice 4 Thoroughly dr...

Page 22: ...lable air atomization THE FUEL MIXTURE NEEDLES The amount of fuel metered and atomized by the carburetor is controlled by the two mixture needles the high speed needle and the low speed needle The low...

Page 23: ...rt consists of a hand held control unit and an on board motorized starter Power for the EZ Start system comes from a 7 2 volt rechargeable battery pack installed in the hand held control unit The engi...

Page 24: ...has not been fully charged may not deliver enough power to crank the engine over at the appropriate rpm to keep the piston from sticking at top dead center TDC A new engine will typically have a tigh...

Page 25: ...break in Follow the instructions exactly for each of the first 5 tanks of fuel Starting Your TRX 3 3 Racing Engine for the First Time Before you start your TRX 3 3 Racing Engine for the first time mak...

Page 26: ...3 When the fuel tank is nearly empty shut off the engine and refuel From here on you do not need to let the engine cool between tanks Tank 4 1 Driving procedure Gently pull the throttle trigger to fu...

Page 27: ...then it is likely that it is over 220 F and needs to cool down If the water takes a long time or does not evaporate at all then the engine is too cool We do not recommend that you operate your engine...

Page 28: ...unterclockwise and retest This setting will extend engine component life Low Speed Fuel Mixture Adjustment The low speed mixture is always set after the high speed needle is correctly adjusted The low...

Page 29: ...ink application available separately see page 43 Engine temperature can be used as an effective tuning aid when you understand the relationship between engine temperature and ambient temperature The e...

Page 30: ...d by speed Towing creates a high load on the engine and at the same time limits cooling of the engine due to low vehicle speed If your Revo gets stuck stop driving immediately Move the vehicle and the...

Page 31: ...nd rear springs on Revo have different spring rates The rear springs are about 10 stiffer than the front springs The spring s pre load tension can be adjusted by turning the spring pre load adjuster A...

Page 32: ...n damping to be reduced Damping should be increased with higher viscosity oil if the model is bottoming easily over jumps Damping should be decreased with thinner viscosity oil if the model is hopping...

Page 33: ...see illustration below The camber angle changes as the wheel moves up and down through its range of travel Static camber is the camber angle at the wheel when the vehicle is set at its normal station...

Page 34: ...the hole in the end of the slipper shaft This locks the shaft for adjustments Turn the adjustment nut clockwise to tighten less slippage and counter clockwise to loosen more slippage The slipper clut...

Page 35: ...djusting the Spur Gear Clutch Bell Gear Mesh The ideal spur gear clutch bell gear mesh for Revo is 0 1mm To set the gear mesh place a strip of standard letter A4 size copy or printer paper about 0 1mm...

Page 36: ...f the following ways 1 Use a 0 50mm feeler gauge between the brake pad insert and brake disk 2 Push the outer brake pad firmly against the inner pad with your finger sandwiching the brake disk between...

Page 37: ...piston and sleeve should be replaced when they no longer seal effectively loss of compression Symptoms include the engine being difficult to start when warm stalling when warm and stalling when throt...

Page 38: ...blue glow plug wire to the glow plug 7 Reconnect the EZ Start controller 8 Do not prime the engine Pull the throttle to 1 2 throttle and push the EZ Start button The engine should start immediately P...

Page 39: ...to the opposite end For example increasing roll resistance in the rear by installing the upper arms in the lower holes will provide more traction for the front wheels and potentially more steering Ins...

Page 40: ...of the various rocker arms on wheel force as the suspension is compressed On the progressive rate wheel force is light at first and increases as the suspension is compressed Bump Steer Elimination Cha...

Page 41: ...on up and down always keeping it submerged in oil to release the air bubbles Let the shock sit for a few minutes to allow any remaining air bubbles to surface 10 Slowly thread the upper cap with the i...

Page 42: ...ts and to the rocker arms 2 Install Long Travel shock springs Replace all four of the 90mm travel shock springs with the four 120mm Long Travel shock springs The front shock springs are indicated by a...

Page 43: ...cles it has bound to and what settings were used for each up to 30 models total Traxxas Link provides a visual interface to name the models customize their settings attach profiles and lock them into...

Page 44: ...ashing fast green 0 1 sec on 0 15 sec off Throttle Trim Seek Mode Turn the Multi Function knob right or left until the LED stops flashing See sidebar for more information Flashing medium red 0 25 sec...

Page 45: ...ow setting you selected previously Likewise setting the Multi Function knob to disabled will prevent the knob from making further adjustments but the last setting of the Multi Function knob will still...

Page 46: ...ious settings and functions Press and hold MENU to enter the menu tree and use the following commands to navigate through the menu and select options MENU When you enter a menu you always start at the...

Page 47: ...to save each position Turn steering wheel to test settings IF END POINTS ARE OK Press hold MENU returns to driving mode IF END POINTS NEED TO BE CHANGED Press SET and repeat steps 6 8 To reset the END...

Page 48: ...6200 Traxxas Way McKinney Texas 75070 1 888 TRAXXAS 140401 KC2054 MODEL 53097 owner s manual...

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