Hello, I'm in the process of getting the 511 in the bobcat to replace the 411 in the bobcat 721. The engine is out, and all is going well except the flywheel. I've attached the 411 flywheel to the 511 engine, it bolted up fine, but there are some issues. The starter does quite line up, the new engine/old flywheel. I think I can change the gear, or maybe put the old starter on the new engine. My main concern is weight, the 511 flywheel/damper is heavier by maybe 10lbs, that's just a guess. I think this will impact the crankshaft, and tear up the engine. The reason I did not use the 511 flywheel is because of the plate I need to connect the yoke. Does anyone have any suggestions?