[toodeep]

I can help and will be here for a while but on the inside of the bowl there is no screw with a spring. The air/mixture screw will be on the front/bottom side of the carb on the outside of the bowl. Depending on the model 2-2 1/2 turns out from lightly seated will get you very close on that one.

 

[toodeep]

Oh' your not alone, I always just view the new post and just looked up and seen I'm in the Recon section. On the Recon initial setting is 1 1/2 turns out. It's mostly to get the idle mixture set right and you have it right on the mixture in is leaner and out is richer.

 

[toodeep]

On the lean side (screw in) it will take a while to rev down and will idle fast and erratic. On the rich side it's going to idle rough and will probably kill itself after few min. Pretty much if you get the bike to idle good then it's set right. Usually you can just set them to the initial setting and it will be good but different locations might need a 1/4 turn to get it just right.

 

[toodeep]

If it was just the cap that fell off then just screw it back onto the plug wire. There is a special screwdriver to adjust the screw, it's cable driven with a 90* at the end. How many turns is the screw set at now? I just posted some basics but it can go both ways sometimes.

 

[toodeep]

Did you end up soaking this carb in a carb cleaner (I always called it to cook/boil out the carb) or was it just sprayed out with carb cleaner in an aerosol can? There might just be enough varnish left in the passages of the carb to be messing with you.