Thanks for the offer, but I think I'll still be screwed. I have 2 of them and the o-rings are dried up in both. I almost just made an o-ring out of bigger one just b/c I wanted to ride, lol.
The carb "might" have BE etched on the air box end, I dont know if the BE was 390's only or not. I think they look just like the gx200's but bigger bore. I'll try and take a pic of mine in the morning with mesurements and look for any other #'s.
If they work you should hang on to them though, theres an adapter kit for them to mount on the gx200 I think... Might come in handy for yours

and thanks again, mighty cool of ya
