My buddy bought a mint 01 426. Since he got it, the hot start never worked. We took a look at it, and as posted in the forums, it was frozen in the carb. from lack of lube. We tryed to pull the plunger out, but it was solid. We drilled it out carefully increasing bit sizes until we could get it out, finally we could grab it. We drilled it out on the bike, slowly, with a shop vac cleaning chips, and with it disconnected from the intake. After removal, it started fine, but had a high idle, and would back fire at heavy throttle. I thought is was running lean because there was no plunger in there and it was pulling air thru the jet(we didn';t have the replacement hot start yet). Well, the new Dr. D just came in, we installed it, and the bike will run with the choke out, but after you push it in, it will not idle. The bike also pops on heavy acceleration with the choke in. We tryed adjusting the idle, but no go. SImply will only idle with the choke on. Could we have screwed up the carb. drilling it? I'm guessing we scored the plunger bore and now the hotstart is leaking instead of sealing.... Any ideas on this......Thanks.