Seagull Models YAKOVLEV YAK 3 ARF Assembly Manual page 19

63 inch
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Because of the size of the cowl, it may be nec-
essary to use a needle valve extension for the
high speed needle valve. Make this out of suf-
ficient length 1.5mm wire and install it into
the end of the needle valve. Secure the wire in
place by tightening the set screw in the side of
the needle valve.
1) With the muffler, needle valve, and spark/
glow plug removed from the engine, slide
the cowl in place over the engine. Temporar-
ily install the propeller and spinner in order
to find the exact location of the cowl. When
satisfied with the cowl placement, secure the
cowl to the fuselage using masking tape.
2) Install the muffler and muffler extension
onto the engine and make the cutout in the
cowl for muffler clearance. Connect the fuel
and pressure lines to the carburetor, muffler
and fuel filler valve. Secure the cowl to fuse-
lage using the M3x10mm screws.
3x10mm
ELECTRIC POWER CONVERSION.
1) Locate the items neccessary to install
the electric power conversion included
with your model.
2) Recommend the items necessary to in-
stall the electric power conversion parts
included with your model.
Needle valve.
19

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