B & S 16hp twin, model 3303776, type 0346-02, code 94111711
OK YOU HAVE A TRI CIRCUIT ALTERNATOR. IT SHOULD PLUG INTO A PIGTAIL WITH 2 DIODES IN HARNESS AND 2 WIRES COMING OUT A RED WIRE AND A BLACK WIRE. THE RED WIRE IS TO RUN ELECTRIC PTO. THE BLACK WIRE IS TO RUN LIGHTS. TO CHECK ALTERNATOR UNPLUG AT THE GREEN CONNECTOR. CHECK WITH METER SET AT AC VOLTAGE (NOT DC) PUT RED TEST LEAD IN GREEN CONNECTOR AND BLACK TEST LEAD TO GROUND. WITH ENGINE RUNNING AT 3600 RPM YOU SHOULD 28 VOLTS OR MORE SHOWING ON METER. NOW ABOUT THIS REGULATOR. IF IT A SQUARE BOX WITH A YELLOW WIRE CONNECTING TO ALTERNATOR IT WILL NOT LET CHARGING SYSTEM WORK BECAUSE IT HAS TO HAVE A BATTERY CONNECTED TO IT WITH AT LEAST 5 VOLTS IN BATTERY TO ENERGIZE IT. SO IF THIS IS WHAT YOU HAVE YOU NEED TO ORDER P/N 398661 FROM YOUR BRIGGS SUPPLIER. THIS IS THE DIODE PIGTAIL AND DO AWAY WITH YOUR REGULATOR.Thanks for your response and help.
The wire from the alternator is black and the connector is green.
The Snapper was brought to my shop after the clutch was replaced, some of the connectors showed signs of excessive heat and the connector on the old clutch was melted.
As far as the regulator is concern we just replaced what was already bolted to the engine cover. The parts list shows the same alternator for both the diode and the regulator types.
The engine is a 1994 and all the documentation I was able to locate so far is for 1995 and later models including the schematics.
Bill