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Yamaha Engine Parts

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  • Riva Yamaha Engine Breather Upgrade Kit 1.8L 2012+

    Easy to install Engine Breather Upgrade Kits eliminate power-robbing crankcase emissions from your engine's air intake. Increases horsepower by removing the engine's requirement to burn relatively non-combustible oil. In forced induction applications intercooler efficiency is improved by preventing the oil sludge coating that lowers thermal efficiency. Kits include K&N filter along with all necessary hardware & detailed installation instr...
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    $38.95

  • Yamaha SHO/HO Spark Plug

    Yamaha GP1800/SVHO/SHO/HO replacement spark plug. (requires 4)
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    $7.99

  • Kanaflex Tubing - Sold by the Foot

    Ordered by the foot. Select the quantity you need, and we will send that length.We offer the primary components individually from our Power Filter Kits for the "Do-It-Yourself" tuners. Velocity stack kits designed to fit stock supercharger inlets. Power Filter, Double Male Flange and Ducting designed to work together. Pre-Filter strongly recommended to prevent water ingestion. All components sold as is and do not include installation instruction...
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    $9.95

  • RIVA Yamaha SVHO/SHO/HO/GP1800 Intake Manifold Upgrade Kit (See Fitment)

    Our Intake Manifold Upgrade Kit enables your SHO engine to produce more horsepower by delivering increased air flow and boost pressure (+1lb). Precision tapered billet sleeve directly replaces restrictive mesh element in intake manifold. Provides improved low end punch and mid range pull through quick & easy installation. Includes detailed installation instructions. NOTE: Our testing has determined the stock ECU will compensate for the incre...
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    $39.95

  • Fizzle ™ Y1000 Yamaha Intercooler Kit

    This is our next generation intercooler for all Yamaha supercharged models. It is hands down our best performing intercooler for the Yamaha to date. Typical gains after installing this intercooler kit are approximately 2+ MPH in top speed, 200+ RPMs, and improved acceleration and throttle response. This kit fits all supercharged Yamaha PWC from all years. You can ad a HKS style BOV copy for $50. Other components include custom piping and a...
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    $749.00

  • Riva Free Flow Exhaust Kit, GP1800/VXR/VXS

    Replaces the restrictive sound suppression system located between the water box and hull exit on your watercraft. Improves engine performance by reducing back pressure and harmful detonation. Includes mandrel bent aluminum tubing that is powder coated to prevent corrosion, high-temp silicone replacement coupler and installation instructions. Replaces the restrictive sound suppression system located between the water box and hull exit on your wate...
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    $214.95

  • RIVA YAMAHA WATER BOX SVHO/SHO/HO 1.8L

    Fits all 1.8L Yamaha Watercraft Developed on our Dyno and tested extensively on the water, this water box features radiused exhaust tubes and end caps for optimum exhaust flow. Unique exhaust baffle will increase the low-end power and mid-range pull of your Yamaha watercraft. Delivers up to 15hp on modified engines along with significant torque gains. High-strength aluminum construction will survive backfires and meltdowns. Powder coated to preve...
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    $469.95

  • RIVA Yamaha GP1800 & VXR/VXS 2015+ Rear Exhaust Kit

    Our rear exhaust kit for 2015+ Yamaha VXR/VXS delivers performance and cutting-edge style. Allows for removal of restrictive sound suppression system located between water box and hull exit. Improves engine performance by reducing back pressure and restriction. Includes mandrel bent aluminum exhaust tube that is powder coated to prevent corrosion, large billet through-hull exhaust outlet, billet OEM exhaust outlet block-off and high-temp silicone...
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    $399.95

  • RIVA Yamaha SVHO/SHO Performance Blow-off Valve Kit

    Our Performance Blow-off Valve Kit improves supercharger reliability and performance by relieving unwanted pressure during off-throttle operation. Reduces supercharger clutch & gear wear and eliminates heat soak in discharge tube. High-strength silicone hose with integrated HKS valve installs easily in place of OEM elbow joint. Includes high quality HKS Super SQV (Super Sequential Blow-off Valve) that features unique sequential valve structure an...
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    $419.95

  • RIVA ENGINE COOLING UPGRADE KIT, SVHO, STAGE 1/STOCK

    Key Feature: Improved performance & reliability. Quick and easy to install. Features specially sized drill bits and clamps. Includes detailed installation instructions.   This simple kit improves water flow to Yamaha SVHO engine and intercooler for improved performance & reliability. Greatly reduces loss of power due to "heat fade" on stock and Stage 1 modified craft. Includes tools necessary to enlarg...
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    $19.95

  • Riva Engine Cooling Upgrade Kit for 2014-2019 Yamaha SVHO Skis

    Our Engine Cooling Upgrade Kit delivers dramatically improved cooling efficiency to engine and oil cooler for increased performance & reliability. Greatly enhances water flow & pressure by replacing restrictive OEM pump strainer & water fittings with high-flow billet components and superior routing. Features special billet fitting that injects water into "hot spot" of your engine block where OEM zinc anode is located. Allows addition ...
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    $269.95

  • RIVA Yamaha SVHO 2018+ Intake Manifold Upgrade Kit

    Our Intake Manifold Upgrade Kit enables your SVHO engine to produce more horsepower by delivering increased air flow and boost pressure (+1lb). Precision tapered billet sleeve directly replaces restrictive mesh element in intake manifold. Provides improved low end punch and mid range pull through quick & easy installation. Includes detailed installation instructions. NOTE: Our testing has determined the stock ECU will compensate for the incr...
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    $149.95

  • RIVA Waterproof Pre-Filter

    Water-repellent cover (pre-filter) for screen-type flame arrestors protect your motor from unwanted water intrusion and debris without restricting airflow. Sold individually. This item is recommended for use on the following RIVA Power Filters: RY13110 - RIVA Yamaha GP1800 Power Filter Kit RY13100 - RIVA Yamaha EX Power Filter Kit Note: This part fits on the RIVA Power Filter Part# RK13090-2.
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    $29.95

  • RIVA FLYWHEEL BOLT UPGRADE KIT (Sea-Doo & Yamaha)

    Fits all Sea-Doo 1503 & 1630 engines, all Yamaha 1.8L engines.The RIVA Flywheel Bolt Upgrade Kit is a high strength bolt kit directly replaces OEM flywheel bolts that are prone to shearing off on modified Sea-Doo 1503/1630 & Yamaha 1.8 liter engines. Superior materials and design improve durability under high stress conditions. An essential upgrade for reliable performance! Sold as a set of 6.Fits: 2022 YAMAHA GP1800R SVHO2022 YAMAHA GP1...
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    $29.95

  • RIVA Yamaha SVHO/SHO/HO Replacement Performance Air Filter

    Our Performance Air Filter directly replaces the stock paper element delivering performance through greatly improved air flow without sacrificing filtration or reliability. Built to our specification by K&N, the unique pleated filter element is washable, reusable and built to last. Key Features: Designed to Increase Horsepower and Acceleration Washable and Reusable High Flow with Excellent Filtration Easy Installation U.S.C.G. Appro...
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    $119.95

  • RIVA YAMAHA SUPERCHARGER SHAFT UPGRADE KIT

    Our Super-Duty ‘GEN-3’ Supercharger Shaft Kit provides the ultimate in reliability for high boost applications. Kit features a revolutionary hydraulic shaft stabilization bearing that limits shaft deflection and wear. Bearing stabilizes end of supercharger shaft via high pressure oil film dramatically increasing the stability of the system. Hydraulic end bearing and one-piece shaft bearing are fed by a through-shaft oiling system providing supe...
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    $529.95

  • WORX SVHO / SHO Ribbon Delete WR04001

    Fits all Yamaha supercharged engines and 2013+ naturally aspirated engines. Including GP1800 Replaces the restrictive mesh element in the intake manifold. It increases air flow to the engine, maximizing horsepower. Constructed from billet for extra durability and strength Tapered design to allow more air flow Suits all Supercharger models and all 13+ N/A Models
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    $38.00

  • RIVA Gen 3 Intercooler w TiAL BOV

    The All New RIVA GEN 3 Yamaha SHO/SVHO Power Cooler Kit (intercooler system) features a huge cooler element that is rated for up to 600hp! High capacity cooler core resists heat soak under the most demanding high boost/high temperature applications. Delivers an increase of 20 peak horsepower over OEM intercooler providing arm-wrenching results on the water! Quality manufacturing of cooler core delivers minimal pressure drops and excellent thermal...
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    Regular Price: $999.99

    Special Price $975.00

  • RIVA Yamaha FX SVHO Power Filter Kit 2019+

    Our Power Filter feeds your supercharged engine a steady diet of cool air delivering greatly improved acceleration and rpm. Replaces restrictive stock air box with a high-volume, precision-formed intake duct that attaches to the supercharger via a large 4” adapter. Cool air enters the system via an oversized K&N filter element. Includes water-repellent pre-filter and detailed installation instructions. Fits 2019+ FX SVHO models.
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    $354.95

  • RIVA Yamaha EX Free Flow Exhaust Kit

    Replaces the restrictive sound suppression system located between the water box and hull exit of your EX watercraft. Improves engine performance by reducing back pressure and harmful detonation. Constructed from mandrel bent aluminum tubing with bead rolled ends to secure couplers. Tubing is powder coated to prevent corrosion. Includes high temperature silicone coupler and complete installation instructions. Key Features: Improved performan...
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    $149.99

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