Pro Boat Formula Hydro Owner's Manual page 7

Section 1: Installing the Receiver and Transmitter Batteries
m.7..Re-install.the.battery.holder.back.into.
the.radio.box.and.properly.seal.the.radio.
box.with.clear.tape.(ABC53009)..Failure.
to.properly.seal.the.radio.box.could.result.
in.damage.to.your.radio.equipment.
m.8..Re-attach.the.tuned.pipe.and.
coupler.to.the.exhaust.manifold.
m.9..Re-install.the.tuned.pipe.mount.