TOHATSU MFS 9.9 Owner's Manual page 40

Serviceable limit
10mm (0.4in)
1.2mm (0.047in)
1.2mm (0.047in)
9.5mm (0.374in)
0.2mm (0.008in)
29.0mm (1.142in)
20A
4st 9.9/15/20 2008
Action to be taken
Replace if below specified value.
Replace if out of specified range.
Replace if out of specified range.
Replace if out of specified range.
Replace if out of specified range.
Clean to remove carbon deposit and dirt. Adjust gap by moving side
electrode. Replace if electrode is severely eroded.
Replace if out of specified range.
Replace if under lower limit.
Replace if under lower limit.
Replace if under lower limit.
2
2-15