Hi John that is pretty much the carb that is easiest and simple to use on those engines you can get rebuild kits but if the engine is running and starts good you may not need to rebuild it as for the gov linkage you'll need a B&S manual to check how it all goes together. I probably have the same tiller but its in a storage shed now and I can't get to it, but I'll look in my shop to see ig I have a 5 Briggs there to see how it all goes. Those are pretty good tillers good luck.