BRP ROTAX 914 Series, Operator'S Manual

Page: 73 / 96

Effectivity: 914 Series
Rev. 0 BRP-Rotax Page 7-7
August 01 2019
7.3) Fuel system
Fuel
The fuel flows from the tank via a filter/water trap to the two
electric fuel pumps connected in series. From the pumps fuel
passes on via the fuel pressure regulator to the two
carburetors.
NOTE
Parallel to each fuel pump a separate check valve is installed.
Fuel pressure
control
The fuel pressure regulator ensures that the fuel pressure is al-
ways maintained approx. 0.25 bar (3.63 psi) above the variable
boost pressure in the “airbox“.
Return line
ATTENTION
The fuel return must be a line of low flow resistance. Max. toler-
ated pressure loss is 0.1 bar (1.5 p.s.i.) between fuel pressure
control and tank inlet with both electric fuel pumps in action.
Otherwise the carburetors could flood.
Via the return line surplus fuel flows back to the fuel tank.
AUX MAIN
00103
1
6
3
5
2
4
7
6
3
5
8
1 fuel tank 2
filter/water trap
3
electric fuel pumps
4
fuel pressure regulator