RC Guys Super Decathlon ARF Assembly Manual page 22

We recommend locating the throttle Servo beside the Rudder Servo on the main Servo rail.
Connect the throttle linkage and make sure it is working in the proper direction and operates the carburetor
linkage properly.
You may want to also install a linkage to operate the engine choke if your engine is so equipped.
Installing some engines may require cutting away some of the firewall/Fuselage like a Saito 180 engine
installation shown below.
It is recommended to reinforce behind the firewall for large cut outs and larger engines.
We recommend using a 3­1/2" aluminum spinner.
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