Dramatically reduce cavitation and prop spin with our easy to install Pump Seal Kits. Location specific, molded inserts fill the voids in pump inlet shoe that bleed air into pump causing cavitation. Recommended for modified craft using RIVA 'GEN-2' Top-Loader Intake Grate (RY22110-1). Note: Fits...

Introducing the ultimate billet throttle lever. Ergonomically designed for premium fit and feel whether you are on the waves or turning buoys. Precision bushings eliminate play common in OEM throttles and provide smooth actuation. All stainless hardware at hinge point eliminates corrosion and play. ...

Introducing the ultimate billet throttle lever. Ergonomically designed for premium fit and feel whether you are on the waves or turning buoys. Precision bushings eliminate play common in OEM throttles and provide smooth actuation. All stainless hardware at hinge point eliminates corrosion and play. ...

Introducing the ultimate billet throttle lever. Ergonomically designed for premium fit and feel whether you are on the waves or turning buoys. Precision bushings eliminate play common in OEM throttles and provide smooth actuation. All stainless hardware at hinge point eliminates corrosion and play. ...

Introducing the ultimate billet throttle lever. Ergonomically designed for premium fit and feel whether you are on the waves or turning buoys. Delrin bushings eliminate play common in OEM throttles and provide smooth actuation. All stainless hardware at hinge point eliminates corrosion and play. No ...

Introducing the ultimate billet throttle lever. Ergonomically designed for premium fit and feel whether you are on the waves or turning buoys. Precision bushings eliminate play common in OEM throttles and provide smooth actuation. All stainless hardware at hinge point eliminates corrosion and play. ...

Our Intake Manifold Upgrade Kit enables your 1.8L HO naturally aspirated engine to produce more horsepower by delivering increased air flow. Precision tapered billet sleeve directly replaces restrictive mesh element in intake manifold. Provides improved low end punch and mid range pull through quick...

Our Billet Driveline Couplers for Yamaha 1.8L & 1.9L engines are precision-machined and balanced to reduce driveline vibration. Designed to accept included OEM Kawasaki dampener which has proven much more reliable for high-performance applications. This coupler/dampener setup was tested extensively ...

The RIVA Yamaha 1.8/1.9L Driveline Coupler Tool is a purpose built tool that enables you to easily install and remove our Yamaha 1.8/1.9L Billet Driveline Coupler Kit. Specialized tool features a custom fabricated, heavy-duty plate with integrated offset 1/2" drive adapter that is secured to an OEM ...

RIVA Performance Valve Lifter Buckets are a "must have" item when upgrading your engine's valve train. Designed to withstand the stress of increased valve spring tension and RPM in modified engines that can cause stock components to fail. Our lightweight valve lifter buckets are CNC machined from he...