Carb Jetting Help

Im new here, found the site thru Harley-performance.com. I just ordered the jet kit today and just wanted your opinions on my setup. Here is my story thus far:

2006 Road King Custom, Arlen Ness Stage 2 air filter, Rush Slip ons, not sure on size of baffles, got them used. 6500 miles

I took my bike to a little motorcycle engine shop referred to by a friend. Guy was a harley mechanic and has worked on bikes for years, it looked like it too! I explained to him my problem, which is as follows: Bike ran ok, a throttle blip would warrant a carb backfire, and a few times bike died at stop lights. Also had blue flames upon shifting out exhaust, visible at night.

He did his "thing" Which not knowing much about carbs, dont know exactly what he did. Anyway, I know he put a different slow jet in, found it to be a 50, I dont think he messed with the main, its a 190. He adjusted the idle mixture screw and I believe cut the spring. After that the bike seemed to run great on the way home, power was smooth, dont know about flames out exhaust, havent done much night riding since. But, still an occasional carb fart and a new problem-if i stop for fuel or just a quick stop and shut the bike off, the bike will not restart very easy, seems like its flooded. A pop out of the exhaust and a little throttle and it seems to start, but it takes about 15 seconds. I adjusted the idle mixture screw out a little more, to about 2 3/4 turns out, bike will have a carb fart once in a while, but still has the hard start issue if I make a quick stop.

I cant wait to get this kit. I have PMed Ken and talked to him a little bit about my issue.

Where should I start with the jets once I get the kit? I know I have to replace that spring and then get the bike to idle good, but should I put a smaller jet then the 50, or start with that once changing the spring.

Thanks in advance for your help, from what I have read so far, there is alot of knowledge floating around here.

I dont even know what it had stock, but what size would you suggest starting with when I get the kit? Should I change the main jet at all?

Thanks for the suggestion. I ended up putting the new spring and slide needle on the top of the carb, and also put a 195 main jet and left the 50 in the slow, at 2 1/8 turns out I still get an occasional carb fart, mainly when its cold, so that tells me, from what I have read, that im still running lean and should adjust the mixture screw out a little more.

I havent put enough miles on it to check fuel economy yet. I should pull the plugs and look at them, but otherwise the bike seems like it has great power and runs the best it has since ive owned it.

LOL, you dont think ill be too lean with a 48?

Gotcha, I was under the assumption that carb farts are caused because of a lean condition.

I am running a big sucker stage 2 and rush slips ons. Ill try the 48 and see what happens.

Thanks for the suggestion of trying the 48. I put it in tonight and gave a little test ride. Adjusted the mixture screw out to about 2 1/4, seemed to run good, no real difference between the 48 and the 50, but im sure ill see it in fuel comsumption. Thanks again for your help.