Seller notes

Riva Yamaha 1.8L Thermo Restrictor Description Allows Yamaha SVHO, SHO & HO engines to run cooler by replacing the thermostat with a specialized restrictor. Ideal for modified watercraft operating in high air & water temperatures. Designed to be used with RIVA Engine Cooling Upgrade Kits. Precision machined restrictor includes o-ring system for superior sealing in thermostat housing. Includes complete installation instructions. To Suit 2008 Yamaha FX Cruiser SHO (1.8L)2008 Yamaha FX SHO (1.8L)20...

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