Tippy has an open header,no muffler. Nobody has ever gotten a carburetor to work with that set-up that I'm aware of. He left with a carburetor jetted to run with a Dyna. Cleaned up and ready to ride.  We're hoping for good weather next Saturday to go for a ride.

thanks for the tips Ohio!  
So met up with Jog yesterday and we talked alot about things but mostly riding.  We got the carb out and he schooled me on cleaining.  He knows more than he leads on to thats for sure.  Got it home pretty late yesterday so waiting to install it today.  Once installed i choked it and hit the starter....nothing....maybe i didn't put enough gas in so i put more in, hit the start and nothing...now i'm nervous....i sit and then i decidde to crank the throttle on start and boom!  she turns over and is running...i ddin't wait long and got on the road...then i ran out of gas...but remembered i  had reserve so straight to the gas station and then for a cool evening ride....I did go back to the raptor petcock, wanted to go back to old plug but didn't and the backfire has all but vanished....now it's still there but it doesn't sound like a devils night in detroit or a DC 4th of July.  still there but barely and compared to few days ago....my neighbors were clapping as rounded the corner and i'm sure in morning they'll be doing the same....jk about that part.
Sp pretty happy so far.  Jog reccommended i swap back to the dyna muffler but i stuck with the short pipe and it's breathing decent...i think.
Now a feel some slipping in the clutch.
Thanks for all the help y'all!  See ya soon Jog.

That’s great!

Can you share a pic of your exhaust?  Do you have any type of muffler or just a header?  I’ve tried a couple short open mufflers on previous S40s.  They were still loud, but not open headed loud.

Like JOG said about the clutch free play.  You should be able to wedge a quarter in the gap at the lever and perch and it should try to fall out.  If it will bite down on the quarter and hold it in there, you need more free play.

Hopefully you didn’t put car motor oil in it.  The friction modifiers in that stuff will cause the clutch to slip.  You need motorcycle specific oil that has the JASO MA/MA2 approval or “meets or exceeds” language on the product container description.  Shell Rotella T4 (Heavy Duty Diesel Oil) is good stuff and meets or exceeds JASO MA/MA2 requirements for being wet clutch safe.  It also has a healthy dose of ZDDP in it - 15W-40.

Eaux Neaux.. I screwed up. We got everything cleaned up, proved jets were open and Tippy was getting ready to go and he was concerned that the slide might need lube. My brain was not engaged,, I agreed and handed him a can of spray lube.
Dammitall..

we didn't put much lube on tho, will it really hurt anything?
also think the choke is broken...is that a simple swap out?  i can pull my old one off it's in great shape.

won't let me post another pic...i'll trt tomorrow.

Yeah, you can only upload 1 pic per post.  So, you have to do multiple posts.

I’m not familiar with that particular muffler (or tailpipe).  Does it have any baffle in it?  You might be able to install an aftermarket baffle in it if it’s too loud for you and the neighbors.  I’ve had 2 that were similar to that (no baffle).  They were pretty loud but not unbearable.

I’m not following the story very well…”getting ready to go and decided the slide might need some lube”?  How did you make this determination?   Did y’all then pull off the top of the carb, remove the slide, and spray it down with lube?  What kind of lube?  I’m also not getting what got “tightened down”.  Yes, swapping the choke is fairly simple plug and play.

Why are y’all lubing the slide (is it sticking)?  Was it black on one side and bare metal (worn off black) on the other side?  The black coating is some form of lubricant.  A light amount of lube won’t “hurt it”, but it’s a bandaid fix at best and won’t last very long.  If it was my bike, I’d consider a new slide or a used one in really good condition.  But as you’ve already figured out, used parts or new aftermarket parts for the Mikuni BS40SS carb are hard to find.

Getting closer!  I’m sure JOG has your back!  Happy carb rebuilding!  Fun stuff!  Very satisfying once completed successfully!

Leaving it idling on the stand starves the cam of oil.