Adjust the throttle input
(transmitter throttle stick),
throttle trim movement and
the carburattor opening to the
suitable position and screw
in the 4x4mm set screw.
YAK54 MK2
Instruction Manual
16
Throttle Servo
MOUNTING THE COWL
1. Remove the muffler and needle valve assembly
from the engine. Slide the fiberglass cowl over the
engine.
2. Measure and mark the locations to be cut out for
engine head clearance, needle valve, muffler.
Remove the cowl and make these cutouts using a
rotary tool with a cutting disc and a rotary sanding
drum attachment.
3. Slide the cowl back into place. Align the front of the
cowl with the crankshaft of the engine. The front of
the cowl should be positioned so the crankshaft is
in the middle of the precut opening. Hold the cowl
firmly in place using several pieces of masking
tape.
Enlarging the holes through the cowl will prevent
the fiberglass from splitting when the mounting
screws are installed.
6. Slide the cowl back over the engine and secure it
in place using four screws.
7. Install the muffler. Connect the fuel and pressure
lines to the carburator, muffler and fuel filler
valve. Tighten the screws completely.
!
4. While holding the cowl firmly in position, drill
four 1,6mm pilot holes through both the cowl
and the side edges of the firewall.
5. Using a 3mm drill bit, enlarge the four holes in
the cowling.
Apply epoxy glue
5mm
Washer
Cowling
Silicone Glue
3 x 10mm TP Screw
Trim the cowling so it will match
your engine
