Bombardier SeaDoo 1998 factory shop manual, Page 141Get this manual
Section 04 ENGINE Subsection 08 (EXHAUST SYSTEM)
REMOVAL
Tuned Pipe
SPX, GS and GSX Limited Remove seatRemove air vent tube support from body openingXP Limited Open engine coverRemove storage basketGTS, GTI and GTX Limited Remove seat(s)Remove seat support (GTI and GTX Limited)GS, GTS and GTI Models Disconnect water supply hose and water injection hoseDisconnect tuned pipe bleed hose1 3
Remove tuned pipe retaining screw no6 from exhaust manifold sideRemove screws no7, nut no8 and flat washers no9 from tuned pipe flangeNOTE: Slightly lift tuned pipe to release nut as necessaryTake care not drop nut and flat washerWithdraw tuned pipe head no10 in forward and rotating movement