Re: 1976 Evin 15 model#15604A upper main seal

[Don]

It can be pretty tough to remove that seal without the special tool. Oh yes, it can be done, but you run the risk of damaging the crankcase casting and introducing debris into the upper bearing.
Installing the new seal can usually be accomplished with a deep socket, or perhaps a piece of plastic pipe. I know Frank used to make the remover tools, don’t know if he still does, look on ebay as well..