Added n4 cams, running very Rich

2001 1200 sportster custom, couple years ago I added S&S air filter, long strait BUB pipes, reversion cones and a jet kit, drilled the slide," I know" 160 main and 42 pilot. Ran Excelent.
Then I drank too much bought and installed a set of Andrews N4 cams. running Rich. took carb off rebuilt it, still rich, went back to stock setup, except drilled slide, still Rich, black smoke when given gas, if idleing it will load up...Not Good.. stock was 170 main...
Any ideas where to go next.
Thanks

I did read one of the tech talks about timing with N4 cams. Ken and Art's coments about leaving the pilot alone and bumping to a 175 were Great.

Help
Thanks

Thanks, didn't mention but I ordered a 45pilot, 175 main and a N65 needle this morning from JP. the CV kit I put in earlier didn have a fatter needle and a 160 main. perfect then, now eyes burn

When you added the cams,did you go back to square one dialing in the carb, like setting the idle mixture??

Yes I did, set it at 2.5 turns. started the bike, let it warm up, pushed in enrichener, love that.. cracked throttle, black smoke, turned in idle mixture, Really did not do much.

I think tonigtht I will remove the accelerator pump nozzle, never did remove it when I went thru card.

Thanks

That's not quite how to set the idle mixture....

Set it at 2 1/2 turns out,start the bike and let it warm up...with the bike idling at about 900 RPM's turn in the screw until the idle stumbles counting the turns then back out the screw counting the turns until it stumbles again...correct setting is midway point.example: if you turn it in 1 turn and it stumbles then back it out 3 turns and it stumbles, correct setting is 2 turns out...
If your best idle is 1 turn or less the pilot is too big...more than 3 turns it's too small...

Well Crap, looks like my o-ring on air fuel mixture has disentegrated. give me afew days to find one, I'm thinking thats gotta be half of it.
Thank everyone for the ideas.

In case you haven't found one yet....

CVP Mixture Screw Packing - CV Performance

Thanks, interesting on the Viton O ring, didn't know that ethanal "alcohol" would destroy regular O rings.. I only run premium with no alcohol,,,they say
Bike runs like ****, gonna tear it down this weekend, Seen a internet thing from Bastard Robs on timing marks ligned up but cam off 26 degrees, I'll see if I can add pics.
1st pic looks good, but off, 2nd pic looks good Right ON WTF
Thanks

if cams were off 26 deg advanced or retard! cylinder pressures would be way off either extremly high or extreme low ccp just do a compression check! ALSO double check push rod adjustment in they are to tight valves will hang open and compression will be low and fuel will not burn totaly in the cylinder thus causeing a rich condition . did you readjust timing after cam install? its a sporty pull the timing cover and check adjustment /. theres more to it than just poping cams in . brother welcome to the sporty pop cams in blues . all the best and keep us posted . and we will continue to tr:cheers:y to help out . p.s. welcome to the forum!

Ha, Thats funny, Pop Cams Blues...I scratched the cover where the original timing was set. put it all back, Starts right up with choke out, but as soon as it starts warming up and you push the choke in a little it starts running sh*tty, I mean Bad, starts blowing black smoke, then will eventually die, no matter if your whippin the throttle to try to keep it running.
here is a copy of Bastard Bobs comment...
Thanks

We took the cam cover off to see if the timing marks were off but they looked perfect - my friend then realized that you can place the #1 cam in two different positions and the marks would line. I always check my cam timing with a degree wheel but this time I was going to do it later - which almost ended up costing me a set of brand new Thunderstorm heads. I think I'll be able to salvage them.

Having cam one tooth off means almost 26 degrees measured from the crank - with big cams like N9's valves will hit each other but milder cams might be able to turn without valves hitting anything and the engine could actually run but would run like ****. This is why I want everyone to be aware of this. I actually checked three different sets of Andrews cams and they were all the same.

if 1 cylinder is a top dead . than !1 cylinder cam lobes on intake and exhaust should be closed . and then the mark is in the correct position . you cant fug that up unless you try period 1 EVEN IF THE MARK IS OFF ONE TOOTH YOU WOULD HAVE NOTICED THAT THE LOBE WAS NOT ON THE HEAL OF TRE CAM AT THAT POINT ! DO A COMPRESSION CHECK FIRST BEFORE YOU TEAR IT DOWN .