LANCER wrote on 07/23/09 at 04:24:06:

Well I tried the #55 Pilot with bleed holes versus the #52.5 stock without. With the #52.5 I have afterfire and popping on decel, Mixture screw about two turns out. With the #55 it running way too rich, like you drive it with the choke pulled all the time, even with mixture screw all the way in. But no popping and afterfire anymore. So I wondered if there's a #55 without bleed holes to see how this one works. I actually need one in between 52.5 and 55, but there is no such thing.

DirtySavage wrote on 07/23/09 at 07:10:16:

That is exactly what I tried. The #55 jet was too rich with black smoke at idle, even with the mixture screw all the way in. This was as lean as it gets for that size jet. Getting the #52.5 stock jet as rich as possible was still not enough to get it running rich enough to run right. Even with the mixture screw out about 4-5 turns, and it still ran too lean. Not as bad as before, but the idle was fluctuating all over the place. I had to constantly adjust it up and down. The carb is clean as a whistle. I wonder if I could order another stock 52.5 jet and make the hole bigger, so it would be in the middle between 52.5 and 55. Does anybody know what size holes the different jets have?