RE: MT70CC TWIN
Brian, I have tried to get gaskets for the MT70, but none are available so I made my own. As for the bearings I would try BOCA bearings. I have had good luck with him finding rare sizes for me. The cir-clips may be available at a good auto parts store, not the chain stores but older independent ones. Some independent small engine shops that work on leaf blowers, weed wackers, etc may be able to help you out. I just re-ringed both of my MT70s with Bowman rings and had some gasket issues, but found material and made all I needed. Haven't run them in yet, but the static compression is way better than before, so hopefully they will improve.