RAREELECTRICAL Retainer Shim Compatible With 1995-2005 Sea-Doo Gti 720 Gs Gts Hx Spx Xp 720 Rotax 717 718Cc 82Mm × 68Mm 2-Stroke Pwc 420857050 2-Cyl 290857050 Medium Valve Engine Single Le Limited

SEA-DOO 720cc PWC — ROTAX 717 (1995-2005): GTI 720 Rotax 717 718cc 2-Cyl Twin 82mm × 68mm 85 HP (1996-2005) GTI LE 720 Rotax 717 718cc 85 HP (2002-2004) — Limited Edition GS 720 (1997-2001) | GSI 720 (1997) | GTS 720 (1995-2001) HX 720 (1995-1997) | SP 720 (1997) | SPX 720 (1996-1997) | XP 720 (1995) Single/Dual Mikuni BN-38 — CDI — Rotary Valve (159° plate) 70 HP (single carb) / 85 HP (dual carb) OEM PART NUMBERS: Sea-Doo/BRP: 420857050 / 290857050 ROTARY VALVE RETAINER SHIM — MEDIUM THICKNESS: Precision retainer shim (medium thickness) for the rotary valve shaft assembly on all Sea-Doo 720cc personal watercraft powered by the Rotax 717 (718cc) twin-cylinder two-stroke engine. The Rotax 717 uses a rotary valve induction system with a 159-degree valve plate — retainer shims control the rotary valve shaft axial end play to ensure proper valve timing. Multiple shim thicknesses are available — measure shaft end play and select the correct shim size per the Sea-Doo service manual. This is the MEDIUM thickness shim. Engine: 82mm bore × 68mm stroke, 718cc displacement. Covers 9 Sea-Doo models from 1995 through 2005 including GS, GSI, GTI, GTI LE, GTS, HX, SP, SPX, and XP 720. Replaces Sea-Doo/BRP part numbers 420857050 and 290857050. Weight 1 lb. ADDITIONAL CROSS-REFERENCES: Product Type: Retainer Shim (Medium Thickness) Position: Rotary Valve Shaft — Controls end play Shim Size: Medium (multiple thicknesses available for precise end play adjustment) Engine Compatibility: Rotax 717 718cc 2-Cylinder 2-Stroke Twin Induction: Rotary Valve (159-degree valve plate) Ignition: CDI Condition: New ⚠️ IMPORTANT: Verify OEM part number before ordering to ensure proper fitment.

• Compatible with SEA-DOO. Please verify your OEM part number from your original unit to help ensure fitment.
• Replaces: Oem Part Numbers: / Sea-Doo/Brp: 420857050 / 290857050 / Specifications: / Product Type: Retainer Shim (Medium Thickness) / Position: Rotary Valve Shaft — Controls End Play / Shim Size: Medium (Multiple Thicknesses Available For Precise End Play Adjustment) / Engine Compatibility: Rotax 717 718Cc 2-Cylinder 2-Stroke Twin / Engine Bore × Stroke: 82Mm × 68Mm / Hp Range: 70 Hp (Single Carb) / 85 Hp (Dual Carb) / Carburetor: Single Or Dual Mikuni Bn-38 /
• Applications: Sea-Doo 720Cc Pwc — Rotax 717 (718Cc) Engine (1995-2005): / Gs 720 Rotax 717 718Cc 2-Cyl 2-Stroke Twin 82Mm Bore × 68Mm Stroke 85 Hp (1997-2001) / Single Mikuni Bn-38 Carburetor — Cdi Ignition — Rotary Valve Induction / Gsi 720 Rotax 717 718Cc 85 Hp (1997) — Single-Year Model / Gti 720 Rotax 717 718Cc 85 Hp (1996-2005) — Longest Production Run In 720 Family / Gti Le 720 Rotax 717 718Cc 85 Hp (2002-2004) — Limited Edition / Gts 720 Rotax 717 718Cc 70 Hp Single Carb
• Applications: (1995-2001) / Hx 720 Rotax 717 718Cc 85 Hp (1995-1997) — Stand-Up/Sit-Down Hybrid / Sp 720 Rotax 717 718Cc 70 Hp Single Carb (1997) / Spx 720 Rotax 717 718Cc 85 Hp Dual Carb (1996-1997) / Xp 720 Rotax 717 718Cc 85 Hp (1995) / / Retainer Shim Note: / This Is The Medium Thickness Retainer Shim — Used To Set Rotary Valve Shaft End Play / Multiple Shim Thicknesses Available — Select Based On Measured End Play / Rotary Valve Uses 159-Degree Valve Plate On...
• Retainer Shim Source: Aftermarket