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Re: DOOOOOOOOOOOOOHHHHHHHHHHH!!!!!!!!

Posted by slownugly007 on Apr 14, 2012; 1:20am
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/1981-CB750F-SS-a-k-a-Project-Plaid-Mandingo-tp3762476p3909405.html

My bike is an 81 and the new tank is, from what me and the salvage guy concluded, a 79-80 model tank. He said that the tanks are indeed identical except for the threaded bung for the petcock. My petcock nut I.D measures out on the caliper at .670" (~17mm) and the bungs threads O.D measures .615" (~15.62mm) and I.D of the threads measures at .570" (~14.48mm). Dime city sells a OEM replacement petcock for 16mm bungs, but Im not 100% that mine is 16mm. The measurements are pretty close, but I dont want to spend $60 unless I know for sure. Thats why I was kinda hoping somebody had one lying around?

Heres my original petcock, the one I need will look just like this but the threads on the nut will be a smaller diameter