20 • REVO 3.3
Filling the Fuel Tank
Use a fuel dispensing bottle (Traxxas Top Fueler, included)
to put fuel into Revo’s fuel tank. To fill the fuel bottle,
squeeze the air out, insert the dispenser tip into the
fuel can, and release your grip on the
bottle. As the bottle expands, fuel will be
drawn into it.
To fill your model, pull up on the fuel
cap handle, insert the tip of the fuel
bottle, and squeeze to dispense the fuel.
THE AIR FILTER
The TRX 3.3 Racing Engine in this model
is equipped with a specially designed
two-stage air filter to deliver maximum filtering efficiency and
performance while protecting your engine from dust and dirt during
extended operating conditions. Use only the supplied filter.
You will
not improve engine performance by switching to an aftermarket
filter
, and you may risk engine damage due to poor filtration.
The two-stage TRX Racing Filter consists of the following components:
1. A rubber filter Base
2. A 3-piece plastic housing
3. A “pre-filter” element
4. A “primary” filter element
You must clean the outer pre-filter after every hour of run time,
even if the filter looks clean.
The primary filter element inside must
be cleaned after 3-4 hours of run time. These intervals include
the break-in time. Clean your air filter after break-in.
Dust (which
is often too fine to see) and dirt constantly move through the filter
anytime the engine is running. Even if you can’t see dirt on the filter,
it is present inside the foam after any amount of run time. If you
exceed the recommended cleaning intervals, your engine will be
damaged. Engine damage or wear due to dirt ingestion is easy to
detect, and one of the top causes of premature engine failure.
Pre-Filter Cleaning Instructions (every hour of run time)
1. Remove the clip from the air filter and remove from the metal
hanger. Remove the air filter assembly from the carburetor bore
by pulling the entire filter assembly firmly to the side to release it.
Do not 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 dry the pre-filter
element with a clean towel.
5. Oil the foam element with air filter
oil. Use Traxxas filter oil (part#
5263) or a high-quality, special-purpose foam filter oil like what is
used for off-road motorcycle and ATV engines. This type of filter oil
is available at motorcycle pro-shops. Apply a total of 24 drops of
Traxxas air filter oil, evenly distributed between the top, bottom and
sides of the filter element. Squeeze the filter element repeatedly to
help spread the oil throughout. The filter element should be evenly
colored by the oil. Even color indicates that the oil is spread evenly.
Do not squeeze out excess oil. Note: Do not use the air filter oil for
anything other than the air filter. It is not meant to be a lubricant.
6. Reassemble the filter and install it on the engine. Make sure the
rubber filter neck fits securely on the carb with no gaps or air leaks.
Primary Filter Cleaning Instructions (every 3 - 4 hours of run time)
1. Remove the clip from the air
filter and remove from the
metal hanger. Remove the
air filter assembly from the
carburetor bore by pulling the
entire filter assembly firmly to
the side to release it. Do not
pull straight up.
2. Remove the pre-filter element.
3. Remove the 3x6mm screw in the end of the filter housing. Remove
the front housing and the primary filter element.
4. Clean the filter parts by thoroughly washing in hot soapy water
(dishwashing detergent works well). Repeat twice for the foam
filter elements.
5. Thoroughly dry the foam pre-filter and primary filter elements
with a clean towel. Dry the remaining filter parts.
6. Oil the foam pre-filter with 24 drops of air filter oil, and the
primary filter element with 30 drops of air filter oil.
7. Reassemble the filter and install it on the engine. Make sure the
rubber filter neck fits securely on the carb with no gaps or air leaks.
Pull to the side to remove assembly
Pull to the side to remove assembly
THE TRX 3.3 RACING ENGINE
9
