That said, the 717 is a great engine, easy to work on and if taken care of right will last hundreds of hours between rebuilds. I have 2 GS series Ski's, a '96 GSX w/787 engine and a '01 GS w/717 engine. The 787 is alot smoother, much more responsive and obviously faster and more torque. However the 717 is more simple and has plenty of power.. You are viewing a completely rebuilt Seadoo 717cc white and silver two stroke engine. This engine will fit: Water Craft Applications: 1995 XP. 1996 SPX. 1995-1997 HX. 1996-2005 GTI. 2002-2004 GTI LE. 1997-1998 GSI. 1997-2001 GS. 1997-1998 SP. 1997-2001 GTS . Jet Boat Applictions: 1996-2000 Sportster. 1996-1997 Speedster 14' 2002 Sportster LT.
1995-1997 Sportster MPEM Conversion 1995 Speedster MPEM Conversion 1996 Speedster MPEM Conversion 1997 Speedster MPEM Conversion. If you are wondering what size engine is in your Sea Doo PWC, all you need is the year/model and you can look it up below. YEAR: MODEL: ENGINE: SIZE (CC) 1988: SP 587 580.7 1989: SP 587 580.7 1990: SP 587 580.7 GT 587. 1997 SeaDoo GTS (5818), GTI (5641) Parts Catalog: 1997 SeaDoo GTX (5642) Parts Catalog: 1997 SeaDoo GS (5621), GSI (5622) Parts Catalog: 1997 SeaDoo HX (5882) Parts Catalog: 1997 SeaDoo Racing Handbook. 1997 SeaDoo Flat Rate Time Schedule: 1997 SeaDoo Tool Booklet: 1988.