Fuel System; Return Line - Rotax 912 ULS 3 Operator's Manual

7.2) Fuel system

General note
Fuel

Return line

Fuel system
Effectivity: 912 Serie
OM Edition 2 / Rev. 0
See Fig. 2
The fuel flows from the tank (1) via a coarse filter (2) the fire cock
(3) and fine filter (4) to the mechanical fuel pump (5). From the
pump fuel passes on via the fuel manifold (6) to the two carbure-
tors.
Via the return line surplus fuel flows back to the fuel tank and suc-
tion side of fuel system.
NOTE: The returnline serves to avoid formation of va-
pour lock.
carburetor
pressure
gauge
6
carburetor
Part
1 fuel tank
2 coarse filter
3 fire cock
4 fine filter
5 mechanical fuel pump*
6 fuel manifold*
7 electric fuel pump
8 check valve
* standard configuration
Fig. 2
BRP-Powertrain
return line
orifice jet
7
5
8
Function
fuel tank
1
2
drain
valve
3
4
00535
page 7-4
April 01/2010