1965 Evinrude 90 HP StarFlite Service Manual, PN 4206, Page 73Get this manual
LEVEL PLUG REMOVED
Figure 6-37Checking Shift Cable Leads tSlide exhaust housing plate gasket, plate, and cable clamp into position on shift cableAttach with Perfect Seal No4 thread-lubricated screwsReplace exhaust cover gasket and attach cover with thread-lubricated screwsAttach exhaust relief bootuCheck shift cable leads with an ohmmeter or ammeter to test for an open circuit or short between leadsA short between leads could cause both forward and reverse gears to engage at the same timeConnect the forward coil green lead to the ohmmeter and ground the other ohmmeter lead to the motorIf circuit is correct, the ohmmeter will show ohms resistanceIf an ammeter is used for this check, a