Fuel System; Fuel Flow - Rotax 915 i A SERIES Operator's Manual

7.3) Fuel system

Fuel flow

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Page 7-6
December 01 2017
The fuel is pumped in the fuel rail 1/3 feed line (2). From there it
passes the both fuel rails (connected by the fuel hose (4)), the
fuel regulator and escapes thru fuel rail 2/4 outlet line (1). The
supply of the injectors (5) is done by the fuel rails. The fuel pres-
sure regulator (6) ensures that the pressure differential between
the fuel injectors and the intake manifold remains constant. This
allows injecting same quantity of fuel independent from the op-
erational state.
Figure 5: Fuel system
Fuel rail 2/4 outlet line
Fuel rail
Injection valves
BRP-Rotax
2 Fuel rail 1/3 feed line
4 Fuel hose
Fuel pressure regulator
6
Effectivity: 915 i A Series
Edition 0 / Rev. 0