Question for the small engine mechanics out there. Have most of the small engine manufacturers gone over to to bushings or sleeve bearing at the crank and flywheel side of the v twin engines? Also what does it mean when you are looking at engine specs and under bearings it says, "Bearings: parent material, plain, etc?" Many mfg's don't reference anything at all under bearings. One would think that the side load on any driven shaft that didn't have ball bearings under such heavy load would be way too much to last. Maybe most of the commercial engines come standard with them? I noticed the Honda V-twin engines say ball bearings.