Voltage Output

Discussion in 'Touring Models' started by 89 FXRS, Mar 31, 2014.

  1. 89 FXRS

    89 FXRS Active Member

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    working on a 2001 carbureted road king - the owner is concerned and it's not in the factory manual and was wondering if any of you guys would know what the voltage out put should be at idle (1,000 rpm's) - I noticed that on fuel injected bikes it puts out 13.5+, in 2001 the carbed bikes have a 38 amp charging system as opposed to the 45 amp system on the fuel injected bikes, I don't think the carbureted (38 amp)bikes put out as much - I'm trying to find out the numbers for the 38 amp system at idle (1,000 rpm's)- thanks for any info. -fxrs
     
  2. Jack Klarich

    Jack Klarich Expert Member

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    13.2- 13.5 would be good numbers
     
  3. Jack Klarich

    Jack Klarich Expert Member

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    Each system has a certain voltage it should produce per 1000 RPM.

    The following is a list of the most common systems.

    22 amp single phase = 24 VAC @ 1000 rpm

    32 amp single phase = 18 VAC @ 1000 rpm

    38 amp single phase = 18 VAC @ 1000 rpm

    48 amp single phase = 24 VAC @ 1000 rpm

    36 amp three phase = 16 VAC @ 1000 rpm

    50 amp three phase 18 VAC @ 1000 rpm

    Set your meter to read AC volts. Unplug the stator from the regulator. Start the motor. On a single-phase system, connect one lead from the meter to each pin on the stator plug. Hold the motor at a steady RPM and read the tachometer and the voltmeter.