Posted May 21, 200816 yr Just bought a Yamaha FZ1N 2006 with only 2000 miles on the clock, so virtually brand new. I have found that the throttle response is unbelieveably jerky. Has anybody else found the same problem? Is there an alternative map for the fuel injection which resolves the problem? Does changing the exhaust improve things? Is there anyone I can contact who may be able to help? Thanks.
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