Im having the same issue as the original post. Can anyone tell me if this drill bit set will have the #68 bit that I need? Any suggestions appreciated. I suspect that the only reason I would buy this set is for that particular bit, I doubt I will use any of the other bits. In other words, I dont want to spend 50-100 bucks on a set of wire bits that I wont use. Thanks. Oh, and I have the 42.5 briggs pilot jet already, have not installed it yet.Did you remove the pilot jet from the side and clean it? If so, then you should try a #40 jet. If that doesn't clear it up, most of have done well(including myself) with running the 42.5 pilot jet along with a very slight opening of the main jet using a #68 micro drill bit. I have a 324 that wouldn't cooperate at all until I did this. Now, it runs very smooth and even, both at low and high speed.