Jetting / floatbowl question

[kennyboy]

I bought a used 97 zx7r. It has a muzzy exhaust(not sure if it's a slip on or Full) and a K&N filter. I pulled the tank and air box off to see if the float bowl mod had been done. I see a sticker for a "Factory" jet kit on the air box. So I will assume they did some jetting, but the FB Mod has not been done. Should I do the FB mod or leave it as is? The bike runs fairly well, but seems to rattle alot in the upper RPMs.

[OrangeShirtDude]

In the process now. I think you have to have some time to tinker. If you just want to get your bike on the road again, don't mess with it.