My '72 MAR OSSA has what looks like an older version of the VM 28 Mikuni carb with a bolt flange to mount. I just got the bike and it had sat for a long time. The carb was filthy and the bowl was siliconed on tightly. All is clean now but I am having a leak out of the bowl seam. The carb sits at an angle and the lowest bowl seam is where it is leaking. I don't know much history on this set up although it looks like the previous owner had a similar problem. My first thought was to lower the floats but they already seem lower than current specs for a VM 28. Just want to make sure it isn't something else before I start moving the float level. Not having a good source for gaskets, I made a paper gasket since I assumed this would be adequate. Any thoughts would be welcome.