OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Engines Questions On Tecumseh / Kirby Engines Tecumseh 13.5hp Engine - Flywheel Magnets

Hi All,

It has 3 Amp DC & 5 Amp AC split Alternator output.

This unit combines a 3 Amp DC system used to charge the battery and a 5 Amp AC system used to power the mowers front lights.

Located in the red wire of the harness is a diode which converts the AC (alternating current) to DC (direct current half wave) for charging the battery.
The yellow wire provides the AC voltage for the lighting circuit.




Minimum Output Voltage @ specified RPM for testing.
MODELS OHV 13.5 - 17.0 (3/5 amp split)
3 Amp DC (Red wire)
2500 RPM - 6.5 Volts DC
3000 RPM - 9.0 Volts DC
3600 RPM - 11.0 Volts DC

5 Amp AC (Yellow wire)
2500 RPM - 15.0 Volts AC
3000 RPM - 18.0 Volts AC
3600 RPM - 22.0 Volts AC


A good charging system should look something like this.
Engine Stopped, battery voltage 12.54 Volts
Engine Running @ 3000 RPM, battery voltage 14.18 Volts


Well there you go..............


John