I have a few quick questions. I have a 1986 Johnson Electric Start 40 Horse Outboard. In the process of trying to rebuild it, I goofed and broke my flywheel. The number on my flywheel is 583011. I have access to another flywheel that has the number 582438. All I know so far about this other flywheel is that it is off a 50 Horse Johnson from the 1980's. So, my first question is, are these two flywheels interchangeable? Do I have to have a flywheel with a number matching mine, or is there a way to cross reference to see if the other flywheel would work? My last question is, if the other flywheel won't work, where do I get a reasonably priced used flywheel for my motor? Thanks.<br /><br />Tink
