Hi all, I had the opportunity this past summer to pick up a small stash of KR parts from the estate of Bob Litten, a long time dirt track racer from north central Ohio. The questions I have are about a set of 60-R heads, a racing oil tank and a set of NOS KHR cylinders. Other questions may come later on some of the other stuff like - what's the value of a linkert MR4 carburetor? But for right now I have three burning questions.1) On the heads, the lip that extends down on the bottom of the head and meets the cylinders have both been milled down. The front head has a .015" lip left while the rear has no lip left at all .000" (Flat) A standard K head has about a .120" lip. The question is, was that a common practice to do that for some reason or even an uncommon practice. Would that not change your compression and certainly valve to head clearance? Were they milled down for wear of some kind and spacers introduced? I am just baffled at this but I will be the first to admit that I know very little about this racing stuff. 2) The oil tank, Has anyone ever seen an oil tank like this. It's about half the size of a regular 3 quart horseshoe tank. Really wondering if this was from the factory racing department or someones personal modification. I have to say that the welds on this thing look so good that it looks factory to me. There was still a KR bike in Bob's shop that had the exact same oil tank on it. Why would you run less oil? Could it be for weight savings? The only advantage that I can see is there would be no worries about chain rub. 3) The NOS KHR cylinders have a number etched in the underside of the bottom fin on both cylinders. Both the same number. (9913)It looks to me like it was done before they were painted but can't be 100% sure. Was that done at the factory or afterwards some time. Could it just signify them as being a matched set? I hope to list all the KR stuff in the parts exchange in the near future. In the mean time any thoughts, comments or even educated guesses would be greatly appreciated.
Thanks, Stan