Riva 310 HP Kit for the Yamaha 1.8L Supercharged SHO Engine
Riva Motorsports offers an aftermarket kit that increases the horsepower of the Yamaha 1.8L Supercharged SHO Engine to 310HP. The Yamaha SHO engine is available in the Yamaha FZR, FZS, FX Cruiser SHO and FX SHO WaveRunners.
Riva's Dave Bamdas explains how the kit works.
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 SHO 400HP+
A modified SHO stage 3 conversion 2010 model on normal pump gas (93RON)
and no ecu mods done all home baked! put that in ur pipe !
I roughly measured the acceleration speed at 0 to 82 mph at 3 sec ,mods
done to improve handling stock pump but new Riva Racing impeller.
The 1/8th mile in about 6 seconds !
We have done a hundred hours on this ski and
it still has not given any problems ,build to last!
Yamaha FX SHO Series Test 2012b- By BoatTest.com
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Yamaha FZ-09 - How I learned to wheelie
First off, you really shouldn't do this... but a few people have asked me
to make a video about this because I keep mentioning how this bike wheelies
so easily. So here's how I learned... just know that if you start doing
wheelies on motorcycles there is a 100% chance you will crash some day
doing one. Be careful and stay away from others when you do them.
Watch and read my thoughts: