Skyranger Nynja Manuel De Montage page 180

b) The standard T-piece is connected to a short length of fuel tube running
forwards approximately half way to the fuel pump outlet.
c) At this position a T-piece with a restrictor connects to allow the anti-vapour
lock fuel return line to pass neatly behind the gearbox, Figure 182.
This restrictor should be a precision Rotax/Skydrive item.
d) The front of this T-piece then connects to the fuel pump outlet (the smaller
diameter pipe).
e) The fuel supply pipe from the tank connects to the inlet of the fuel pump (the
larger diameter pipe).
Note that although the fuel pump inlet and outlet tubes are of different
diameters, the fuel tube will fit over both of them.
A useful tip: to fit ¼" bore flexible rubber pipe to 8mm metal tubes, such
as those on the fuel tanks and elsewhere: tenderise (as per a steak) the
end of the rubber pipe, or heat it by dipping into boiling water. This
softens the end. If not already done, clean up the end of the metal tube
with a file, and wash to remove any swarf. Then with a small drop of
light oil (3-in-1) placed on the tube or the pipe, slip the rubber tube over
the metal pipe. The pipe clips may also be a tight fit, but will go on with
some worrying.
f) The fuel supply pipe and the fuel return pipe both pass behind the gearbox
and back over middle of the engine and under the centre piece of the engine
mount, to pass through the firewall beside the rear of the port upper engine
mount along with the pipe from the additional restricted T-piece to the fuel
pressure gauge (if fitted).
Ensure that the tubes cannot chafe against the firewall, using rubber
grommets or sheaths of split fuel tube or oil hose.
Nynja Manuel de montage Version 5
Figure 182; fuel pipe routing in engine compartment.
12..Système d'alimentation essence
180