Mercury Mariner 4, 5 102CC Sail 1990 Outboard Service Shop Manual, Page 131Get this manual
10Remove starter interl ock bolt (a), wave washer (b), and cam (c) Cleaning and Inspection Design 2
1Clea co mpo nents in solvent and dry with compressed air
lI.WARNING
Spring tension Is strong enough to cause serious injury If spring is releasedIMPORTANT; It Is not necessary to remove rewind spring from housing for Inspection2If necessary, remove re wind spring (a) from spring housing (b)by ca refully unwinding coiled spri ng, as shown