Originally Posted by
93civic
i appriciate it bro., def. glad i choose the zx6r over any other 600.
the roughness im feeling is; most noticable in first gear i have to be much more smooth with the throttle now. at high rpms the roughness is much less noticable. also, shifting gears as i release the clutch i have to be alot more gentle to get that smooth feeling. throttle, clutch, and chain have alot more play then they should.
as far as breaking in the bike correctly; from 0-600mi i kept the bike under 5k rpms, but after i got my first service i took the rpms past no mans land i think a couple times too many, just out of pure adrenaline. because of this im now hearing a slight rattling noise in the enigine. a friend of mine is suggesting that this is loosened valves and nothing i should be worried about. could this be possible?? also, what would be a good method to use to clean the chain??
breaking it in will have little to do with your issues. Google the "mototune breaking in" method. Rattling on many bikes is normal as well as other engine noises....some develop after a few miles and are normal. If you had a ducati with the dry clutch rattle you'd think there's something very wrong with it. Bike engines are pretty durable and unless you did redline shifts for every gear since it was new its hard to believe that something is broken or out of adjustment already.
in the corners its all rider as a better rider will smoke a new 600 with an ex500 or sv650. On a really tight track even my drz400sm with 33 or so rwhp will be faster than a 600 if the drz has a better rider
what exactly is the roughness you speak of? Is it hesitating or missing? Is there flat feeling spots at certain rpm's? A lot of bikes have flat spots in their power curves that can usually be tuned out. I have a couple on my 99 zx6r which are barely noticable even after several rejets. You might look into people's success with tuning your bike.....some bikes gain a bit of smoothness and some don't. A couple hours on a dyno and trying different mapping settings would do a bit for most bikes and is usually a good call on newer bikes that are mapped lean from the factory