Bombardier SeaDoo 2001 factory shop manual, Page 290Get this manual
Section 07 COOLING SYSTEM Subsection 02 (CIRCUIT, COMPONENTS AND CARE)
The water flow regulator valve no2 is mounted directly onto the muffler
F01E1FA
F01E2BA
TYPICAL 1Water supply hose of regulator valve 2Regulated water to injection fitting 3Water injected into the muffler
NOTE: The water injected into the muffler is not regulated by the valveA calibrated water injection fitting of 3.0 mm (.118 in) on carburetor-equipped models and 4.0 mm (.156 in) on DI models inside diameter limits water flow into the mufflerThe water flow regulator valve has calibrated spring and tapered needle which regulate the injected water in the tuned pipeCAUTION: Do not change anything on the water flow regulator valve, otherwise serious engine damage can occurIn many countries it is illegal to tamper with this valve as this will affect the EPA certificationAt low speed, water pressure in the supply hose of the regulator valve is not sufficient to overcome the spring of the regulator valve; more water is being delivered to the injection fitting at the tuned pipe