Suzuki SFV650, Service Manual

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1G-2 Fuel System:
General Description
Fuel System Description
B944H11701001
Fuel System
The fuel delivery system consists of the fuel tank (1), fuel pump (2), fuel mesh filter (3), fuel feed hose (4), fuel delivery
pipe (5), fuel injectors (8) and fuel pressure regulator (6). There is no fuel return hose. The fuel in the fuel tank (1) is
pumped up by the fuel pump (2) and pressurized fuel flows into the injector (8) installed in the fuel delivery pipe (5).
Fuel pressure is regulated by the fuel pressure regulator (6). As the fuel pressure applied to the fuel injector (8) (the
fuel pressure in the fuel delivery pipe) is always kept at absolute fuel pressure of 300 kPa (3.0 kgf/cm
2 , 43 psi), the fuel
is injected into the throttle body in conic dispersion when the injector (8) opens according to the injection signal from
the ECM.
The fuel relieved by the fuel pressure regulator (6) flows back to the fuel tank (1).
“C”
“A”
“B”
1
6
7
2
3
4
5
8
I944H1170040-02
1. Fuel tank 5. Fuel delivery pipe “A”: Before-pressurized fuel
2. Fuel pump 6. Fuel pressure regulator “B”: Pressurized fuel
3. Fuel mesh filter 7. Fuel filter (For high pressure) “C”: Relieved fuel
4. Fuel feed hose 8. Fuel injector