Instruction manual
RYAN
Item code: BH72
INSTALLING THE COWLING
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.
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.
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.
3x12mm TP Screw
4
245mm
245mm
85
m
m
278
m
m
<Top side>
31
