Does anyone have a service manual for a 680 that would share the engine specs with me? I specifically need the crank measurements but if you have all of them that would be a great help also.
I've got what I think is a Long 610 (data plate missing) that had the engine replaced before I got it. Now it's spun a bearing and it turns out that the main bearing journals and rod journals are larger than what the 610 engine calls for and I can not find anyone that has any idea of what this...