Can someone shed some light on the carburetors for the bg86 blower. I can't believe how many different part numbers there are for this blower. After swapping 4 used carbs tonight until I found one that still worked right I went on eBay to pick up a couple spares and there are all kinds of different numbers. Now one obvious difference is that some have the breather that goes into the air filter housing and some don't but other than that I don't see many obvious differences. Can I just pick any that matches the one I got and call it good? I have the one with the breather and I'm assuming that the numbers are changed as they try and work the bugs out.