1985 Mercury Outboard V-300 V-3.4L Shop Service Manual, Page 42Get this manual

1985 Mercury Outboard V-300 V-3.4L Shop Service Manual, Page 42

Field Assembly Test for Ground IDisconnect (shunt field) green wire fro brush plat e
IMPORTANT: Take care that positive brushes, brush leads and shunt field wire do not contact starter frame during lest, or false reading will result2Usi ngan Ohm meter (Rx scale) con nect one lead 10 te rminal stud and olher lead to Slarler frame(Figure 7) If mcter ind icates co nt inui tyfi eld assemb ly is grounded and needs replacement
aGreen Wire (Shunt Field)Black Wire (Sh unt Field)Positive Brushes

Figure 8Testing Shunt Field

Shunt Field Green Wire Positive Brushes Terminal Stud Frame

Figure 7Field Coli Test tor Ground

Shunt Field Test
JDiscon nect shunt fiel green wjre from brush platc2Usi ng Ohmmcl erperform the fo ll owing test: