PART NUMBERS:
• Sea-Doo 290850637
• Sea-Doo 420850638
• BRP 290850637
SPECIFICATIONS:
• Type: Top End Gasket Kit
• Engine: Rotax 657/657x — 650cc 2-Stroke 2-Cyl Twin
• Bore x Stroke: 78mm x 68mm
• Power: 70-80 HP
• Ignition: CDI
• Induction: Rotary Valve
APPLICATIONS:
• Sea-Doo GTX 650 (1994-1995)
• Sea-Doo SPX 650 (1994-1995)
• Sea-Doo XP 650 (1993-1994)
• Sea-Doo XPI 650 (1994)
Sea-Doo 650 Top End Gasket Kit
Top end gasket kit for the Sea-Doo 650 personal watercraft models including the GTX SPX XP and XPI equipped with the Rotax 657 and 657x engines displacing 650cc in a 2-stroke 2-cylinder inline twin configuration with a 78mm bore and 68mm stroke featuring CDI ignition and rotary valve induction. This top end gasket kit includes the head gaskets base gaskets cylinder O-rings and exhaust gaskets needed for a top end engine rebuild. The Rotax 657 series engines produce 70 to 80 horsepower and the water cooled 2-stroke design operates under severe thermal cycling which degrades gasket materials over time. Always clean all mating surfaces before installing new gaskets and torque all fasteners to factory specification.
PRODUCT NOTICE:
As a parts distributor we mostly sell aftermarket parts (any OEM parts would be noted as such). Aftermarket parts are not sourced from the original vehicle or equipment manufacturer, but are designed to function the same as - if not better than - the original. All parts sold are new.
WARNING - This product may expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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