The base plate is worn out just enough to have a vacuum leak causing a rough idle. I haven't been able to find a machine shop in town that can do the work they all say they don't have anyway to line it up. So I'm going to do it myself. Mikes carburetor parts carries the bushings and the screws I need. I am just having trouble find a 5/16 pilot reamer that will work. Here is the a reamer I am looking into buying it will just have to modified to work as a pull through reamer. http://www.use-enco.com/1/1/14095-hs...-329-1124.html And here are the bushings and screws I'm going to use. Screws http://www.carburetor-parts.com/Thro...ew_p_1224.html Bushings http://www.carburetor-parts.com/Bras...ing_p_435.html I have also found a kit and a write up on how to replace them. the kit http://www.ebay.com/itm/Carburetor-5..._Tools&vxp=mtr The article http://mgaguru.com/mgtech/carbs/cb210c.htm
I use a Matco KL 9315 kit that I believe is mabe buy K Line. If you cant come up with something I could ship this kit to you or you could sent me your base plate.