School, I keep learning.
I wanted a perfect stock K6 paint job, decided my skills were not going to yield this result so I looked into professional help.
Eventually I went down the Yamiya path when their people contacted me that they had K6 kits available, so I bought in. I liked that this left me a creamed tank I can paint in the future to look like my 1972 CB500 Four. Pic attached.
The schooling is the petcock side swap, and the tank emblem attachment.
First issue causes the carburetor throttle mechanism to hit the tubing connection unless the carbs are tilted rear end down significantly. Loosening the clamps and a wooden pry bar works. It also causes the airbox to move down which I panicked a little over. Initially I left it in this position as I was concerned about the velocity stacks would lose their seal, Yamiya convinced me to just push them into place. Pleasant surprise was it seems to work just fine, but takes significant force to get the mounting screws installed.
The Petcock swap also buries the idle adjustment screw behind the petcock, turns it into a two hand adjustment. I have a set of spare carbs that I looked at and could see the screw could be swapped to LH side, problem solved...almost. After fussing around for 10 minutes I found the F0 carbs I have on the bike do not have this second tapped hole. So The decision as to when to take the carbs back off to check the float height was pushed to NOW. Drilled and tapped hole for adjustment screw and for a stop so it is not seated on aluminum.
Lesson one complete, I now know in detail how the Tank, Petcock, and carburetors interact, and literally how to shoehorn it all together.
Lesson two goes on. A debate between me and Yamiya is the depth of the mounting tabs on the tank emblems. I feel the holes are not as deep as original, nor are they the correct diameter for installing the retaining clips. I had to clip 3 mm of each post to get the Lable to sit against the tank. then I used 3M glue tape to hold the emblems to the tank. I broke a nice set of replication emblems purchased from Australia. (Same seller from whom I purchased nice 550 side cover emblems.) They were not formed to match the tank curve, in attempting to make this bend, I broke one. Lesson learned: there is a reason why the original cast emblems were much thinner. I am going to try restoring a few sets of original Emblems, have them being vapor blasted now. Working with Powder coat company to develop a process, for now it seems I'll be painting the black & white.
Bottom line is the Yamiya parts are painted very well, as you can see in the photos. The pics below show the lesson's homework on the carbs.
Bad news is the #3 carb bowl is still overflowing, I will be taking it apart for the third time to replace this valve. Shame because it is running OK, but #3 must be running rich.
Check out my 3mm tap holder, backyard engineering at it finest.