Hello All, First thanks so much for all the wonderful information I have read in these posts over the years. I have been lurking all this time, so this is my first post with a problem. I have a 1982 XJ650J Maxim. Sat in my garage for a couple of years.. (uh..1998?) ... I started in 2013 with what I thought was a straight forward carb rebuild, and of course put the jets in wrong per Haynes.. found this website.... and gee.. here we are 2017 and just finishing... I have followed the church of clean, (cleaned, rebuilt, and replaced all the parts inside the carbs that I was supposed to, ( yes... that is an old O ring on the throttle shaft outside of carb one, inside seals are new.. I missed that one.) and rebuilt some other parts (petcock assembly, oil filter swap out, adjusted the tappets..er...valve clearances, exhaust gaskets, ? other odds and ends )... Now I would really like to actually ride this summer, so I am finally getting it back together. Did that a month ago, starts, runs up floods out and dies. Let it rest, does the same thing. Thought originally I had not set floats right, so off they came, and set them right this time.. took my time.. . Back on the bike, same thing again. Now thinking I have manifold leak. ( I will take other suggestions to check). This is intake manifold four, which does look a little cracked around the manifold gauge port. Are these hairlines enough of a crack to cause the runaway throttle problem? ( looking at these pics, I am wondering how some stems got in the choke assembly ?.. checked and removed them). It's pretty dark in the garage. I can order 1 and 4 with gaskets, ( ? ) from XJ4ever. It would be great to hear some opinions before I plunk down the cash. ... which I am figuring I will do now... 2 and 3 do not look as weathered. These cracks don't seem like they go through the whole boot, but I would need to remove them to be sure. Suggestions? Thanks again everyone, and I will try to answer questions, although it may take a couple of days. I have been trying to follow the threads for runaway throttle. I am ready to tackle some other problems (brakes? tires? clutch? ) on the bike...(and actually ride it... I don't have another bike right now).. I will take the carbs off again next weekend, but I work a lot, so it takes a while.. ... obviously.