The Yamaha 1.8L and 1.9L engines don't provide adequate oil volume, or baffling for modified performance applications. With the stock oil pan, engines and superchargers can momentarily starve for oil in instances of hard cornering and hard deceleration events. This ultimately leads to supercharger f...

The Yamaha 1.8L and 1.9L engines don't provide adequate oil volume, or baffling for modified performance applications. With the stock oil pan, engines and superchargers can momentarily starve for oil in instances of hard cornering and hard deceleration events. This ultimately leads to supercharger f...

Take your Yamaha PWC to the next level of performance with the FuelTech Billet Wet Sump Racing Oil Pump for the Yamaha 1.8L from the 2012 SHO, HO and SVHO engines up to the newest 1.9L HO introduced in 2024. Product Highlights: Plug and Play: Direct replacement to the stock Yamaha 1.8L/1.9L oil ...

Optimize your vehicle’s performance with the Indutech Mechanical Hex Drive Fuel Pump Flange Collar. This versatile component connects any mechanical fuel pump to a mechanical oil pump, making it suitable for cars, jet skis, and other applications requiring reliable fuel delivery. This flange co...

This kit contains all parts needed to upgrade your engine with the much stronger 2016 and newer timing chain system. PLEASE NOTE: You must use 2013, or newer camshafts with this upgrade kit. Kit contains the following components: Crankshaft Timing Chain Cam Sprockets Dampeners (chain guides) ...

Our block guards have been meticulously designed and are CNC machined out of as solid block of lightweight T6 6061 aircraft grade aluminum. The block guard's function is to support and eliminate flex in the cylinder walls. Our block guards feature a corrosion-resistant anodized coating and cooling p...

Performance billet T6-6061 aluminum construction, anodized black finish, manual timing chain tensioner. Direct replacement for the factory automatic timing chain tensioner. Unlike the automatic factory timing chain guide, a manual timing chain tensioner will not loose it's setting and will keep the ...

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 reliabl...

Some failures on the Yamaha 1.8L engines involve the crankshaft being pushed forward in the engine. This can be caused by a number of reasons. Some may include: drive coupler coming loose. The PTO transfer shaft coming loose. The nut on the end of the pump driveshaft coming loose. Thes...

Our ultra high strength crankcase main stud kit is essential equipment when upgrading internal components on your high boost Yamaha engine. Precision machined from premium grade 8740 alloy and heat treated to exacting tolerances, these studs dramatically increase reliability & ease of maintenance. ...