Starter button is threaded but has a non threaded flat side. look like i should just be able to turn it a little a time while trying to pull it out and it should come right out but its not working that way. Any advice would be greatly appreciated.
There's a couple of tabs you have to bend them flat so the nut will turn. After installing new one with gasket secure the nut and bend the tabs back.
The 841 has the ones with the taps the 860 may just have the lock washer.