Re: 82 CB750C smoking and missing a little. Need help plz.

Posted by GreenSkullCB750C on Jul 16, 2018; 6:28pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/82-CB750C-smoking-and-missing-a-little-Need-help-plz-tp4063611p4063615.html

It doesn’t start smoking untill its hot! As I let it idle, smoke starts to seep out at the header flange where it connects to the head! It all happened a day ago while I was riding. Didn’t do none of this before. Something happened. Scared to ride it so haven’t since a day ago. I shut it off and let it cool! Still smokes as it cools. Grey in color not sure about blue tint couldn’t really see being that its just seeping and not being thick in nature! Faint for most part. Also coming out the end of #4  like going through pipe and out but thats expected. Its also coming out of number #1 but not from the header flange and not as bad as #4 thinking thats due to misfire! But 4 is noticable!!!  Could a coil that drives 1 and 4 that’s bad cause 1 and 4 spark plug to get fouled which looks like black soot??? Tricking me into thinking air/fuel ratio is off but really its just not igniting??? And no valve cover is not leaking from what I can see! And no the cam chain adjuster are still intact. Haven’t touched em! Also it became a little harder to stay running, wants to shut off a couple times after choking. Thoughts 🧐