2006-2009 Suzuki LT-R450 Service Manual, Page 191Get this manual
FUEL SYSTEM AND THROTTLE BODY
FUEL DELIVERY SYSTEM
The fuel delivery system consists of the fuel tank, fuel pump, fuel filters, fuel feed hoses, fuel delivery pipe (including fuel injector) and fuel pressure regulatorThere is fuel return hoseThe fuel in the fuel tank is pumped up by the fuel pump and pressurized fuel flows into the injector installed in the fuel delivery pipeFuel pressure is regulated by the fuel pressure regulatorAs the fuel pressure applied to the fuel injector (the fuel pressure in the fuel delivery pipe) is always kept at absolute fuel pressure of 2.94 kgfcm (294 kPa, 41.81 psi), the fuel is injected into the throttle body in conic dispersion when the injector opens according to the injection signal from the ECMThe fuel relieved by the fuel pressure regulator flows back to the fuel tank'L ,