Keihin CVK 40 27492-96 Carb spit, spit, choke sputter
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did you use the slide spring that was in with the plastic slide? if so, it won't work with your new slide very good, what needle do you have?
it's a 80" Evo right? I would put EVERYTHING back to STOCK; Needle, UN-DRILLED slide, (I think you screwed up by drilling it) slide spring, emulsion tube, genuine Keihin jets, (45 slo,185 main) and make sure the needle jet (on top of the E-tube) is not upside down, very easy to do.
then make sure the float height is correct, 2 turns out on the mix screw and I'd bet you would be very close, as long as there are no intake leaks....
my set-up is; stock (un-drilled) slide & spring, N8EA needle w/1 shim, 48 slo, 195 main, 2 turns on mix screw. this is on a '06 95" twincam, with cams, K&N, pipes, zippers ign., etc.
I have no coughing, backfiring, etc. etc. I gave it what it seemed to want and it runs very good.....
#15
Have had this 92 ultra classic tour glide with Keihin CVK 40 27492-96 Carb for several years. Love the bike, never lets me down. But when cold or at some stop lights it spits back through the carb, a real pain in the butt. I was going to replace the carb with an S&S E or a Mikuni but neither would work with the cruse control which comes in nice on the long rides. So ordered a stage 1 upgrade from Johns Motor Cycle parts and the EZ-Just mixture screw. Put them in today and have to finish re installing the carb in the morning. The bike has the Screaming Eagle Ignition Mod, K&N breather and modified stock mufflers. When doing the install today I noticed that there was burnt/black area in the Upper slide chamber area (from the popping back). when I changed out the pilot jet it had a # 48 in it I replaced it with a #46 the Main jet was a 185 which I replaced with the new one of the same size. Any ideas or suggetions, I'm all ears ??
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