getting more fuel in the tank?

[stevierst]

I've done this mod to all three of my 600's, and covered over 100,000 miles on them with no problems, explosions, fuel spillage, shift in the earths magnetic flux etc.....

I made life a bit simpler though, instead of drilling it, I used a tapered centre punch and gently tapped this into the tiny air hole until it opened up to 5-6mm.

Never had a problem with it, don't know what all you drama queens are getting into a fuss about.