{"product_id":"rave-valve-rebuild-kit-fits-seadoo-787-800-carbureted-gsx-gtx-spx-xp-replaces-290260723-290260728-420260728-420260723","title":"RAVE Valve Rebuild Kit – Fits SeaDoo 787 800 Carbureted GSX GTX SPX XP (Replaces 290260723, 290260728, 420260728, 420260723)","description":"\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n  table.ss-table th {\n    white-space:nowrap;\n    word-break:normal;\n    letter-spacing:normal;\n    font-weight:600;\n    background:#f8fafc;\n  }\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis RAVE Valve Rebuild Kit fits SeaDoo 787 800 carbureted engines, including GSX, GTX, SPX, and XP models from 1995–1999. The kit includes all essential components to restore your exhaust RAVE valve system, ensuring proper power delivery and engine performance across compatible twin-cylinder applications.\u003c\/p\u003e\n\u003cp\u003eThis aftermarket kit directly replaces OEM part numbers 290260723, 290260728, 420260728, and 420260723.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eComplete rebuild solution for both RAVE valves\u003c\/li\u003e\n  \u003cli\u003eDesigned for carbureted 787\/800 two-stroke engines\u003c\/li\u003e\n  \u003cli\u003eIncludes bellows, O-rings, and gaskets for full service\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003ePart Number\u003c\/th\u003e\n        \u003cth\u003eNotes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSeaDoo\u003c\/td\u003e\n        \u003ctd\u003e290260723\u003c\/td\u003e\n        \u003ctd\u003eValve Bellow\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSeaDoo\u003c\/td\u003e\n        \u003ctd\u003e290260728\u003c\/td\u003e\n        \u003ctd\u003eValve Bellow\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSeaDoo\u003c\/td\u003e\n        \u003ctd\u003e420260728\u003c\/td\u003e\n        \u003ctd\u003eValve Bellow\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSeaDoo\u003c\/td\u003e\n        \u003ctd\u003e420260723\u003c\/td\u003e\n        \u003ctd\u003eValve Bellow\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSeaDoo\u003c\/td\u003e\n        \u003ctd\u003e420-430-110\u003c\/td\u003e\n        \u003ctd\u003eShaft O-Ring\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSeaDoo\u003c\/td\u003e\n        \u003ctd\u003e290-430-110\u003c\/td\u003e\n        \u003ctd\u003eShaft O-Ring\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSeaDoo\u003c\/td\u003e\n        \u003ctd\u003e290-931-765\u003c\/td\u003e\n        \u003ctd\u003eShaft O-Ring\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSeaDoo\u003c\/td\u003e\n        \u003ctd\u003e420-931-540\u003c\/td\u003e\n        \u003ctd\u003eGasket\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSeaDoo\u003c\/td\u003e\n        \u003ctd\u003e290-931-540\u003c\/td\u003e\n        \u003ctd\u003eGasket\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine and Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eModel\u003c\/th\u003e\n        \u003cth\u003eYears\u003c\/th\u003e\n        \u003cth\u003eNotes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eGSX\u003c\/td\u003e\n        \u003ctd\u003e1996–1997\u003c\/td\u003e\n        \u003ctd\u003e787\/800 carbureted\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eGTX\u003c\/td\u003e\n        \u003ctd\u003e1996–1997\u003c\/td\u003e\n        \u003ctd\u003e787\/800 carbureted\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSPX\u003c\/td\u003e\n        \u003ctd\u003e1997–1999\u003c\/td\u003e\n        \u003ctd\u003e787\/800 carbureted\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eXP\u003c\/td\u003e\n        \u003ctd\u003e1995\u003c\/td\u003e\n        \u003ctd\u003e787 only, NOT 720\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eXP\u003c\/td\u003e\n        \u003ctd\u003e1996–1997\u003c\/td\u003e\n        \u003ctd\u003e787 only, NOT 720\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eChallenger\u003c\/td\u003e\n        \u003ctd\u003e1996–1997\u003c\/td\u003e\n        \u003ctd\u003e787\/800 carbureted\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eChallenger 1800\u003c\/td\u003e\n        \u003ctd\u003e1997–1999\u003c\/td\u003e\n        \u003ctd\u003e787\/800 carbureted\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSpeedster\u003c\/td\u003e\n        \u003ctd\u003e1998–1999\u003c\/td\u003e\n        \u003ctd\u003e787\/800 carbureted\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eEngine Displacement\u003c\/dt\u003e\n  \u003cdd\u003e787 \/ 800 cc\u003c\/dd\u003e\n  \u003cdt\u003eEngine Type\u003c\/dt\u003e\n  \u003cdd\u003eTwo-stroke carbureted\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eRAVE valve exhaust system\u003c\/dd\u003e\n  \u003cdt\u003eKit Type\u003c\/dt\u003e\n  \u003cdd\u003eComplete rebuild\/repair (twin pack)\u003c\/dd\u003e\n  \u003cdt\u003eFitment\u003c\/dt\u003e\n  \u003cdd\u003eSeaDoo 787\/800 carbureted models\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cstrong\u003e2 × RAVE Valve Bellows\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003e2 × Shaft O-Rings\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003e2 × Gaskets\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eShut off fuel and disconnect the battery before beginning work.\u003c\/li\u003e\n  \u003cli\u003eRemove the exhaust cover and locate both RAVE valve assemblies on the engine.\u003c\/li\u003e\n  \u003cli\u003eCarefully disassemble each valve housing, noting the orientation of components.\u003c\/li\u003e\n  \u003cli\u003eRemove old bellows, O-rings, and gaskets; clean all mating surfaces thoroughly.\u003c\/li\u003e\n  \u003cli\u003eInstall new shaft O-rings onto each RAVE valve shaft.\u003c\/li\u003e\n  \u003cli\u003eFit new bellows onto the valve assembly, ensuring proper seating.\u003c\/li\u003e\n  \u003cli\u003ePlace new gaskets on the valve housing mating surfaces.\u003c\/li\u003e\n  \u003cli\u003eReassemble the valve housing, torquing fasteners to factory specification.\u003c\/li\u003e\n  \u003cli\u003eRepeat the process for the second RAVE valve.\u003c\/li\u003e\n  \u003cli\u003eReinstall the exhaust cover and reconnect all components.\u003c\/li\u003e\n  \u003cli\u003eReconnect the battery and perform a visual inspection for leaks.\u003c\/li\u003e\n  \u003cli\u003eTest the engine at idle and low speed before returning to normal operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I know if my RAVE valves need rebuilding?\u003c\/summary\u003e\n  \u003cp\u003eCommon symptoms include loss of mid-range power, rough idle, excessive smoke, or unusual exhaust noise. Torn bellows or hardened O-rings are typical failure points after several seasons of use.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWill this kit fit both 787 and 800 engines?\u003c\/summary\u003e\n  \u003cp\u003eYes, this kit is compatible with all SeaDoo 787 and 800 cc carbureted engines from the model years listed. Ensure your engine is carbureted, not fuel-injected.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes this kit work on 720 XP models?\u003c\/summary\u003e\n  \u003cp\u003eNo, this kit is designed exclusively for 787\/800 engines. The 720 XP uses different RAVE valve components and is not compatible.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eCan I replace just one side, or must I do both?\u003c\/summary\u003e\n  \u003cp\u003eWhile you can replace one valve, it is strongly recommended to rebuild both RAVE valves simultaneously to maintain balanced performance and avoid repeat maintenance.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat tools are required for installation?\u003c\/summary\u003e\n  \u003cp\u003eBasic hand tools including socket wrenches, screwdrivers, and a torque wrench are needed. A service manual for your specific model will provide torque specifications and detailed diagrams.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow often should RAVE valves be serviced?\u003c\/summary\u003e\n  \u003cp\u003eInspect RAVE valves every 50–100 hours of operation or annually. Replace bellows and seals at the first sign of wear to prevent carbon buildup and maintain optimal exhaust timing.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n  \u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eShipping speed \u0026amp; cost\u003c\/summary\u003e\n  \u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWarranty \u0026amp; returns\u003c\/summary\u003e\n  \u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify images\/specifications against your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n  \u003cli\u003eFast Global Fulfillment — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n  \u003cli\u003eManufacturer-Direct Value — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":51025817338171,"sku":"24VK473","price":15.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/12_584198d8-657f-4dd7-9ae3-a769176d8073.jpg?v=1772959729","url":"https:\/\/seasierra.com\/products\/rave-valve-rebuild-kit-fits-seadoo-787-800-carbureted-gsx-gtx-spx-xp-replaces-290260723-290260728-420260728-420260723","provider":"SeaSierra","version":"1.0","type":"link"}