on my zx7 theres a stainless pipe with a muzzy attached `and mothers metal polish does the trick w/no problem.. just short then long strokes.. but like someone mentioned before a buffing wheel works really well and fast.. and you can find a cheap one at home depot in the tool section and ryobi sells a package w/buffing wheel and polish for like 10 bucks.. remember its in the tool section.. basically you just need a screw gun to attach it too.. these are all good things to have anyway being bike owners..

jay
7-Pieces Metal Buffing Kit-A10BK07 at The Home Depot