In this episode of Mike Finnegan’s Garage, we are engine-swapping one of my favorite vehicles, my 1994 Yamaha Superjet. For the last 15 years this thing has been mostly stock and pretty damn reliable. Lately, though, it’s been giving me lots of trouble so that was the perfect excuse to hook up with the boys at Ericson Machine and Performance to make some serious upgrades to the drivetrain of this water rocket. We swap out the stock 701 Yamaha engine for a fully built stroker deal from Ericson and we trade the stock jet drive for a ported version with upgraded internals! Top all of that off with a Factory B pipe and dual carbs and with some expert tuning this Yamaha Superjet is a water rocket!
Go give the Ericson Machine and Performance channel a follow for more great info on hopping up two-stroke engine and personal watercraft:
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Every dollar you spend goes right back into my broken Hemi. lol