:O not sure what you mean by sliders? The only 'sliders' on the carbs are the slides that the main jet is attached to...and you shouldn't ever have to drill into those suckers lol.
Only "drilling" needed to be done to install a jet kit would be to drill into the caps for the pilot screw, if yours is a U.S. model that is. All other models shouldn't have the caps for those jets installed.
I've even heard of people just taking a small punch and hammering it in the middle of the cap with a good hit or two, taking a hook scribe and pulling the cap out.
That's the only thing I can think of you would have to drill out for just a jet kit...
Only "drilling" needed to be done to install a jet kit would be to drill into the caps for the pilot screw, if yours is a U.S. model that is. All other models shouldn't have the caps for those jets installed.
I've even heard of people just taking a small punch and hammering it in the middle of the cap with a good hit or two, taking a hook scribe and pulling the cap out.
That's the only thing I can think of you would have to drill out for just a jet kit...