Indiana Ken
Well-known Member
I am trying to help a neighbor - we trade work from time to time. He is building brush mowers using a EX-270D, 9HP Subaru engine, rope start only. He wants to delete the battery and run the electric clutch directly from the engine alternator, lighting coil. He claims the engine uses a 16 amp alternator however, the voltage regulator needs to have a battery to work properly.
I understand the P/N 21066-2071 voltage regulator is used on the Kawasaki, Series I, 17 HP engine for commerial walk behind mowers, with electric clutch, rope start and no battery. I believe this 17 HP Kawasaki engine has a 13 amp alternator however, there are Kawasaki engines with 15 amp alternators.
The simple solution would be to use the Kawasaki regulator on the Subuara engine, both are two wire outputs from the alternator. However I am concerned the Kawasaki regulator will not handle the higher output alternator. Does anyone have experience with this regulator or know if it is also used with the 15 amp Kawasaki alternators?
Also, the Kawasaki regulator uses a capacitor. The capacitor appears to be much like a motor run or start capacitor with two wires into the regulator. Does anyone know what function the capacitor serves? Has anyone used a capacitor with the Subaru regulator/rectifier to allow use without a battery?
I understand the P/N 21066-2071 voltage regulator is used on the Kawasaki, Series I, 17 HP engine for commerial walk behind mowers, with electric clutch, rope start and no battery. I believe this 17 HP Kawasaki engine has a 13 amp alternator however, there are Kawasaki engines with 15 amp alternators.
The simple solution would be to use the Kawasaki regulator on the Subuara engine, both are two wire outputs from the alternator. However I am concerned the Kawasaki regulator will not handle the higher output alternator. Does anyone have experience with this regulator or know if it is also used with the 15 amp Kawasaki alternators?
Also, the Kawasaki regulator uses a capacitor. The capacitor appears to be much like a motor run or start capacitor with two wires into the regulator. Does anyone know what function the capacitor serves? Has anyone used a capacitor with the Subaru regulator/rectifier to allow use without a battery?