Rotary Shaft Compatible With Sea-Doo 3D Rfi 800 Gsx Rfi Gti Le Rfi Gti Rfi Gti Rfi Std Gtx Rfi Spx

SEA-DOO 800 RFI — ROTAX 787cc 2-CYLINDER 2-STROKE (1998-2005):
• Rotax 787 RFI (800): Bore 82.0mm × Stroke 75.0mm, 787cc, Inline 2-Cyl 2-Stroke, 110HP, RAVE Exhaust Valves
• Fuel System: Rotax Fuel Injection (RFI) — Electronic fuel injection system replacing carburetors
• Cooling: Liquid Cooled, Open Loop | Ignition: CDI

SEA-DOO 800 RFI MODELS:
• 3D RFI 800 — 787cc Rotax RFI Twin, 110HP, RAVE Valves, Stand-Up Style (2005)
• GSX RFI 800 — 787cc Rotax RFI Twin, 110HP, RAVE Valves, Performance (1999-2000)
• GTI LE RFI 800 — 787cc Rotax RFI Twin, 110HP, RAVE Valves, Limited Edition (2003-2005)
• GTI RFI 800 — 787cc Rotax RFI Twin, 110HP, RAVE Valves (2004)
• GTI RFI STD 800 — 787cc Rotax RFI Twin, 110HP, RAVE Valves, Standard (2005)
• GTX RFI 800 — 787cc Rotax RFI Twin, 110HP, RAVE Valves, Touring (1998-2002)
• SPX 800 — 787cc Rotax Carbureted Twin, 110HP, RAVE Valves, Sport (1998-1999)

OEM PART NUMBERS:
• BRP/Sea-Doo: 420837352 / 420837352
• BRP/Sea-Doo: 290-837-352 / 290837352

NOTES:
• The rotary shaft is the main valve timing component in Rotax 2-stroke engines
• Controls intake port timing through rotation synchronized with crankshaft
• Worn rotary shafts cause poor idle, reduced power, and engine timing issues
• Weight: 5 lbs — professional installation recommended