Awesome. Thanks to everyone for all the helpful information! Is there any way to determine a date from the serial number...assuming that the second longer number on the tag is the serial number?

Thanks. I'll look for the carb kit on ebay.

Do those numbers I posted earlier mean anything? They are on a small metal tag on the engine. Kind of assumed one was the model number and the other a serial number, but I'm not positive.

I've got a very old engine on a go-kart with an ID tag that shows "1439 4371195". I have no idea what make and model number it is. It's got a diaphragm carb with the numbers "78 4M9" stamped on the flange and it says Lauson Power Products on the diaphragm cover. I'm trying to find a carb kit for it,...