Help needed for carburetor adjustment!

[Jhoodwink]

Well I finally got my carburetor and throttle cable installed and it seems to run okay. (although I haven't ridden but in a circle a couple times)

But I have no clue what year carburetor this is so I'm not sure really where to adjust the air screw to. It'a a 1985 spree but I bought the carb from someone else. I don't want to ride it around to much if its running lean. Would I just put it about 1 3/4 turns out so its b/w the different year carburetor settings, then adjust it? I read the manual but I'm not really sure how to do this as I don't know the year carb and I don't have a tachometer for idle speed.

Is there anyway I can be sure its not running lean?

It seems to get up and go, although I have just ridden it in a couple of circles about 10 mph. I was too afraid I would hurt it, if it was running lean.

I read the little document on here about running lean or rich, I just didn't know if there are some recommendations on how to set the carb since I don't know the year

Any help would be greatly appreciated.

Sorry if this topic is a little repeatitous, I just want to be sure I don't burn this little guy up.

Thanks! James

[Jerry]

James,
If you get a little smoke when it's cold and the throttle doesn't seem to hesitate when you accelerate, you're most likely doing just fine.
Big thing to remember is to let the machine warm up good before ripping off into the yonder. Take it out for a high speed cruise (high speed is relative). If you get some spitting when up to speed, it may be running rich. If it hesitates on acceleration and just won't 'wind up' then you may be lean. Put twenty or so miles on it and pull the plug. Check for 'white' deposits. If so, then it's lean. If tan or brown, it's perfect, if black with carbon, you're running rich.
This is, of course, just ball park diagnosis but it fits pretty well.

[Jhoodwink]

Does screwing in the air screw allow less air in causing a richer mixture? Or do I have the wrong?

Thanks,

James