Description

This XRmarine kit allows for the refurbishment of the sealing elements of two RAVE exhaust valves on carbureted Sea-Doo 787/800 engines corresponding to the indicated applications. The listed OEM replacement part numbers are 290260723, 290260728, 420260723, and 420260728. It is used during valve maintenance or when replacing damaged bellows and gaskets.

The kit includes 6 pieces: 2 RAVE valve bellows, 2 shaft O-rings, and 2 flat gaskets. It does not include the complete metal valves or other mechanism components.

Technical Specifications

Advertised OEM replacement part numbers: 290260723 / 290260728 / 420260723 / 420260728.
Indicated manufacturer: XRmarine; kit-specific reference not provided.
Type: Refurbishment kit for bellows and gaskets for two RAVE exhaust valves.
Condition: New.
Contents: 2 bellows, 2 shaft O-rings, and 2 flat gaskets (6 pieces total).
Engine application: Carbureted Sea-Doo 787/800, according to supplier data.
Weight: Not specified in available information.
Regulated substances: No substances of concern declared by the supplier.
Installation: Must be performed by a professional, including inspection of the valves, shafts, and their housings. Adhere to the cleaning, assembly, and adjustment procedures in the workshop manual.

Compatibility

The applications below follow the supplier list for carbureted 787/800 engines. For XP models, the data sheet expressly excludes 720 versions. Verify the engine type and original part numbers.

1995: Sea-Doo XP 787, excluding 720 engine.
1996: Sea-Doo GSX, GTX, XP 787 and Challenger, XP excluding 720 engine.
1997: Sea-Doo GSX, GTX, SPX, XP 787, Challenger and Challenger 1800, XP excluding 720 engine.
1998: Sea-Doo SPX, Challenger 1800 and Speedster.
1999: Sea-Doo SPX, Challenger 1800 and Speedster.

⚠️ Always verify your serial number (VIN) and the original OEM part number before ordering to confirm exact compatibility with your model.

Why Replace RAVE Valve Bellows and Gaskets?

Deteriorated bellows or gaskets can compromise the seal necessary for the RAVE mechanism to function. Their replacement should be accompanied by an inspection of the valves and shafts to distinguish a leak from fouling or other mechanical failure.

Cracked, punctured, or deformed bellows.
Hardened, cut, or deteriorated O-rings.
Flat gaskets damaged during disassembly.
Seal failure identified during RAVE system diagnostics.

During the prescribed maintenance for your engine, have the cleanliness, movement, and condition of the RAVE system components checked. Replace damaged components and follow the adjustments in the workshop manual before returning to service.