Most parts are available from Mercury.
But they are no longer making parts for it.
Force production ended in 1999.
Fairly decent old technology motor.
Not the most reliable.
May be worth it if you can get it cheap.
I my opinion the most attractive thing about the Force is the price.
I have had close contact with only 2 Force motors one new.I wasn't impressed.And to that point I had high hopes for their developement.
As far as parts look here at I boats and compare to more main line motors like Evinrude/Johnson.