Chrysler 100, 115 and 140 HP Outboard Motors Service Manual, OB 3439, Page 101Get this manual
TEST #4Testing regulator-rectifier Equipment: voltmeter NOTE
This is not bench check Test must be made with engine running 1Disconnect redwhite lead wire from battery side of starter relay2Place jumper wire between end of redwhite lead (lead that was removed) and terminal it was removed fromThis is necessary to start engineFigure 4
VOLTMETER
REDWHITE
CAPACITOR REDWHITE GROUND
Figure 5Testing RegulatorRectifier
TEST #5Checking circuit breakerEquipment: 2938-1 continuity tester1Reset circuit breakerFigure 4Installing Jumper Wire2Connect one lead to each terminallight should come on
FLYWHEEL
3Start engineretard throttle to idle Remove jumper wire 4Connect positive (red) voltmeter lead to redwhite and positive (+) lead of 500 microfarad (minimum) capacitorService part 404030 capacitor may be usedFig'ure 55Connect black voltmeter test lead wire to engine ground and negative (-) lead from capacitorFigure 56 Advance throttle to 4000 RPMNormally voltmeter should read 13.514.5 volts Readings should never exceed 17.5 volts If soreplace reg ulator rectifier 100 DescriptionThe flywheel contains magnets located around the outer circumference of the flywheel RemovalRemove flywheel as follows: