Fixxxer 78 - I put the stock needle back in on the third notch which is stock. I have a 124 main jet in it. The air screw turned to 1 1/2 out. I fear it is too lean. I have a question about the stock needle being different than the Dyno Jet needle and will that cause a lean problem - because the Dyno Jet needle is shorter and stouter which to me would make a very rich run. With putting the stock needle back in, which is longer, would it lean it out too much?