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RE: diference between FZR600 and yamaha FZ600 Pure sport
G-man said 2007-07-31 07:28
the biggest difference is that the FZ600 is aircooled and the FZR600 is water cooled. Also the FZ has only 2 valves per cylinder and the FZR has 4. I have both. My FZ has been bored out to a 652 and has keihin 29mm smoothbore carbs on it and it has about 103 hp. The FZR, I am doing a stroker 660 motor with keihin 33mm FCR flatslides and should be about 115-117 hp.