Bombardier SeaDoo 1996 factory shop manual, Page 41Get this manual
Section 03
TROUBLESHOOTING
ENGINE DETONATION OR PINGING
OTHER OBSERVATION
Ignition
POSSIBLE CAUSE
Timing too far advanced Spark plug heat range too high
Checkreset Checkchange to correct range 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 needle valve Impeller leading edge damaged Twisted crankshaft RAVE valve does not open
Checkreplace, refer to section 08-02 Checkadjust, refer to section 06-03 Checkreadjust, refer to section 06-03 Checkrepair, refer to section 04-02 Checkclean Checksiphonreplace Checkclean, refer to section 06-03 Checkreplace, refer to section 09-01 Check, refer to section 04-03 Check, refer to section 04-02
Engine revs lower than its maximum operational RPM (787 engine) Peak performance is delayed until higher RPM range is reached (787 engine)