Gy6 main jet question

[RyanosAlien]

Hey

I'm going to try and drill out my main jest to a 125 or a 120 but what size drill bit would I need, and sorry if this has already been covered

[rks]

When you can buy a kit containing 5 main jets, (105, 110, 115, 120, and 125), for $8.80 including shipping.....why screw around with a drill?

[RyanosAlien]

Why spend 8$ dollars when I already got the drill bits and if I mess the stock 1 up oh well there only 8$ lol