Good idea. If it doesn't run well, you can worry about it then. What was wrong with the old motor? I just got a McCulloch 33cc chain saw, a Weedeater 30cc and a Ryobi from my garbageman. He sees a lot of good motors in the trash as he works. It's a great connection. The Ryobi was run without oil. It ruined the top end, but a lot of good parts there.

Dave