Exhaust
The elbows of the exhaust can rotate. As soon as the desired position is achieved, the center 19
mm bolt can be tightened to fix them in place.
Warning!
Do not damage the exhaust elbows ends! The extension pieces that can be attached to them might not
seal properly.
The silicon hose is used to seal the joint between the exhaust elbows and the ROTO FS exhaust
pipes or between the extension piece and the ROTO FS exhaust pipe. The extension piece and the
ROTO FS exhaust pipe are not part of the packaging!
Use the included tie straps on both ends of the silicon hose to connect the extension piece or the
exhaust pipe.
Warning!
Do not reduce the diameter of the exhaust pipes.
Warning!
The silicone hose properly seals only if the contact surfaces are clean of dirt and grease. If repeated
connection is made, contact surfaces have to be cleaned and degreased.
Warning!
The gap between the elbows and the exhaust pipe should not exceed 2mm.
Fuel System
The gas lines need to be connected to the carburetors. Remove the protective cap from the
carburetor’s threaded nozzle and connect the gas line to it.
Warning!
Reinstalling the protective cap during extended periods while the engine is removed is recommended to
prevent the carburetor from drying up and therefore causing the engine to malfunction.
Carburetor
There is an air intake attached to the carburetor that must not be covered!
Warning!
Do not remove or alter the air intake! It is a part of the engine responsible for its correct operation.
Engine Oil Discharge
There is a small amount of unburned engine oil used to lubricate the crankcase that needs to be
discharged. Please remove the cap from the small yellow threaded nozzle on the bottom side of the
back engine cover and connect a hose to it routing the oil away, toward the chassis is preferred
or to a small vented tank placed inside the model, which must be periodically cleaned.
Warning!
Keep the discharge hose clear otherwise, the engine damage can occur!
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