TOHATSU MFS 9.9 Owner's Manual page 56

2. Remove lower unit installation bolts, and pull lower unit ass'y
downward to remove.
Remove pump case (Upper) 3.
3.
Remove impeller 4 and check it.
4.
5. Check upper pump case for deformation. Replace if
necessary.
6. Check impeller 4 and pump case liner 5 for crack and
wear. Replace if necessary.
Check key 6 and drive shaft groove c for wear. Replace if
7.
necessary.
8. Reinstall the part. For details, refer to Chapter 6.
4st 9.9/15/20 2008
3
b
4
a
a Projection b Hole
3
a
5
c
6
3-9