Bombardier SeaDoo 1997 factory shop manual, Page 25Get this manual
Section 02 TROUBLESHOOTING Sub-Section 01 (TROUBLESHOOTING CHART)
ENGINE DETONATION OR PINGING
OTHER OBSERVATION
Ignition
POSSIBLE CAUSE
Timing too far advanced Spark plug heat range too high Defective ignition module
Checkreset Checkchange to correct range Checkreplace, refer to section 07-02 Check, refer to engine overheats Use good quality fuel
Engine temperature
Engine overheats Fuel of poor quality
ENGINE LACKS ACCELERATION OR POWER
OTHER OBSERVATION POSSIBLE CAUSE
Weak spark Carburetion, jetting too richlean Throttle does not open fully Low compression Exhaust system restriction Water in fuel or oil Debris in carburetor needle valve Impeller leading edge damaged Twisted crankshaft Engine revs lower than its maximum operational RPM (787 engine) Peak performance is delayed until higher RPM range is reached (787 engine) RAVE valve does not open
Checkreplace, refer to section 07-02 Checkadjust, refer to section 05-04 Checkreadjust, refer to section 05-04 Checkrepair, refer to section 03-05 Checkclean Checksiphonreplace Checkclean, refer to section 05-04 Checkreplace, refer to section 08-02 Check, refer to section 03-06 Check, refer to section 03-05