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Project Yamaha quads


-- Hey wait, that's a 4-cylinder engine! -- Upon further review that's not a single cylinder engine. It's got 4 exhaust pipes and 4 intake tracks, so there's no way it can be a YFZ450 engine. Maybe we should read what James Masephol said about his quad in his Email to us. Well, it did indeed start out as a 2005 Yamaha YFZ450. However he took the engine out and installed the engine from a Yamaha R1 street bike. Those 1000cc 4-cylinder engines make about 180 horsepower stock, and James figures his gets more like 200 with the…