Bombardier SeaDoo 2001 factory shop manual, Page 64Get this manual
Section 03 TROUBLESHOOTING Subsection 01 (TROUBLESHOOTING CHART)
ENGINE LACKS ACCELERATION OR POWER
OTHER OBSERVATION POSSIBLE CAUSE Weak spark Carburetion, jetting too richlean (carburetor models) Throttle does not open fully Low compression Exhaust system restriction Water in fuel or oil Debris in carburetor needle valve (carburetor models) Impeller leading edge damaged Twisted crankshaft Clogged direct injectors (RFI and DI models) Clogged fuel injectors (RFI and DI models) Low fuel pressure (RFI and DI models) Incorrect throttle position sensor (TPS) adjustment (RFI and DI models) Overheated engine Engine revs lower than its maximum operational RPM Peak performance is delayed until higher RPM range is reached RAVE valve does not open (if so equipped) RAVE valve is stuck opened (if so equipped) REMEDY Checkreplace, refer to section ELECTRICAL SYSTEM Checkadjust, refer to section FUEL SYSTEM Checkreadjust, refer to section FUEL SYSTEM Checkrepair, refer to section ENGINE Checkclean Checksiphonreplace Checkclean, refer to section FUEL SYSTEM Checkreplace, refer to section PROPULSION SYSTEM Check, refer to section ENGINE Remove and clean direct injectors Remove and clean fuel injectors Check fuel line and fuel pump pressure Check and adjust TPS, refer to section ENGINE MANAGEMENT See ENGINE OVERHEATS in this chart Check, refer to section ENGINE