Hey everyone I have just recently bought a ZZR 600 1997 I have owned one of these bikes previously, actually It was the same year in fact. However I am having some difficulties with this one, Someone please help. On a cold start after the choke it seems to run fine Great low end power. It starts to Tac out at 10,000 rpm, and it breaks down Bad! After riding it awhile I have to feather the throttle to keep it at 70 mph, If I give it full throttle after riding it 10 min Forget it!!! It dogs out quickly, You know that sound you get that just sounds like The motor is just sucking too hard or sucking too much air and nothing is really happening (like your still where you gave it the throttle instead of a mile down the road, ) The bike is missing the air breather, but it does have individual air breathers and has and electronic fuel pump and to me seems to be starving for fuel or Not getting enough spark. Can someone Please Help me? All Help will be greatly appreciated!!!!