How to Easily Add 40-hp to Your Yamaha FX SHO, FZR or FZS WaveRunner
The Riva/Athena Pro-Series ECU provides a huge performance advantage to the Yamaha 1.8L Engine delivering over 40-hp to the stock SHO engine. ECU is fully programmable with either RIVA supplied mapping or user adjustable parameters. Most calibrations require use 91+ octane pump fuel. Plugs directly into factory wiring harness via waterproof connectors.
Yamaha FZR Riva Thru Hull system Riva HKS BOV
Yamaha FZR Riva Thru Hull system, Riva HKS BOV, Riva Power filter
H2O Turbo FZR
87.1 @ 18PSI @ 8400 RPM
Yamaha Factory sponsored PWC Rider Mike Follmer, riding his Yamaha FZR on Lake Havasu, in October, 2010.