RAREELECTRICAL Oem Grade Retainer Shim Compatible With 1995-2005 Sea-Doo Gs Gti Gti Le Gts Hx Sp Spx Xp 720 Rotax 717 718Cc 2-Cyl 2-Stroke 85 Hp Valve Pwc Medium Engine Limited Replaces 420857050

SEA-DOO GS 720 & GTS 720 PWC (1995-2001): GS 720 Rotax 717 718cc 82mm × 68mm 85 HP dual carb (1997-2001) GTS 720 Rotax 717 718cc 70 HP single carb (1995-2001) SEA-DOO GTI 720 & GTI LE 720 (1996-2005): GTI 720 85 HP (1996-2005) | GTI LE 720 85 HP (2002-2004) SEA-DOO HX, SP, SPX, XP 720 (1995-1997): HX 720 (1995-1997) | GSI 720 (1997) | SP 720 (1997) SPX 720 (1996-1997) | XP 720 (1995) All Rotax 717 — 718cc, 82×68mm, Rotary Valve (159° plate) OEM: 420857050 / 290857050 — 1 lb Retainer Shim — Medium Thickness: Direct-fit medium thickness retainer shim for the rotary valve shaft on all Sea-Doo Rotax 717 (720cc) two-stroke engines. Controls rotary valve shaft end play — critical for proper valve timing. The Rotax 717 rotary valve uses a 159-degree valve plate. Multiple shim thicknesses available — measure end play per service manual to select correct size. Covers 9 Sea-Doo models: GS, GSI, GTI, GTI LE, GTS, HX, SP, SPX, XP 720 from 1995-2005. Replaces 420857050 / 290857050. ADDITIONAL CROSS-REFERENCES: Product Type: Retainer Shim (Medium Thickness) 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 Induction: Rotary Valve (159-degree valve plate) Ignition: CDI Weight: 1 lb Condition: New The Rotax 717 uses a rotary valve induction system with a 159-degree valve plate ⚠️ 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