420241221 Power Valve Cover Screw Adjustment for Sea-Doo Challenger 800 1996-199

Power Valve Cover Screw Adjustment for Sea-Doo

This power valve cover screw adjustment, OEM 420241221, is the adjustment screw used to set power valve preload on Sea-Doo 800 engines.

Overview

This power valve cover screw adjustment for Sea-Doo is the threaded adjuster that fits into the power valve cover to dial in RAVE valve activation. The adjustment screw for Sea-Doo lets you tune power valve opening for cleaner low-end response and stronger mid-range on 800-series engines. It suits riders and shops servicing Challenger 800 and other Sea-Doo 800 machines.

Built For Performance

• Threaded screw design for precise power valve preload adjustment
• Fits the power valve cover on Sea-Doo 800 engines
• OEM cross reference 420241221 for easy lookup
• Allows fine tuning of RAVE valve opening point
• Designed to hold adjustment under engine vibration

Fits These Machines

• for Sea-Doo Challenger 800 1996
• for Sea-Doo Challenger 800 1997

On-The-Job Use

• Adjusting power valve preload during tune-ups
• Servicing RAVE valve covers on the bench
• Restoring correct power valve response after a rebuild
• Fine tuning for low-end and mid-range performance

Specs At A Glance

Good To Know

Q: How many adjustment screws does one engine need? A: RAVE power valve systems use one adjustment screw per power valve cover, so check your engine's cylinder count before ordering.

Q: Do I need to remove the cover to adjust it? A: The screw is made to be adjusted at the cover, though it helps to have the cover off for inspection during service.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.