I used a JIS driver. Maybe I didn't 12 years ago but I can't remember. I do remember having a similar conversation about the flimsy carbs then too, and definitely took extra care in getting them out. This time I had what I thought was the right driver, but between this time and last, they're no good. The smallest vice grips I could find were 6 in needle nose and they are about the worst tool I've tried for this.

Grind a slot? ok. It is a tiny screw on top of the cheapest metal I've ever encountered. Something tells me that I won't go hard enough and just frig it up, or too hard and bust my carb.

I'm gonna disagree and say that while I love Triumph bikes, the carbs have pathetic fasteners and the carbs themselves are made from cheap material. Most carbs are and I dunno why. It's defintely not all aluminum. Zinc? Whatever it is it sucks. Why not plastic? Or decent metal?

I'm definitely scared to heat those corners, as one already cracked on me the 1st time. But I'm getting desperate.

All that said I appreciate you guys and your input a lot!