Yamaha RIVA 1.8L Thermostat Delete Kit FX-SHO SVHO HO FZR FZS VXR
RY1013-40-TR
Fits: 1.8L SHO/SVHO/HO Motors
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.