Ok so here's the deal I just moved here from NYC where I purchased a 2002 zx-6r. Why A 600 well you can only acquire so much speed fro one light to another which is aprox 300 ft. ANY way... SO I live in Colorado now at 5000 ft and The bike runs like CRAP!
If I hit the throttle hard it boggs then takes off, If I give it gas gradually, it sputters and back fires.
Everyone has been telling me to re-jet the bike, but when I went to the place that does it (name witheld) they told me no, just re-sync the carbs and do an exhaust/gas analysis for $120 and not re-jet ($425) This would solve my problem because I have a D&D slip on exhaust and not a full sustem. "Also wouldnt hurt to use an ignition advancer." Someone spill the truth!!!
I have alraedy Have a K&N air filter.