2 wire dynamo

IdahoNative

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Equipment
Kubota B7100D 4x4, non-HST, FEL 1630
Jan 12, 2022
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Florida, central
I managed to snag both wires on my two-wire dynamo (B7100d) at the dynamo. Both wires are light blue. I looked at the wiring diagram, but I cannot determine which wire from the harness goes to which wire coming out of the dynamo. I image it matters. Can anyone enlighten me?
 

Dave_eng

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M7040, Nuffield 465
Oct 6, 2012
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Williamstown Ontario Canada
The best thing about this situation is either blue wire does not matter.
If you start at the regulator/ rectifier you should find a harness heading for the dynamo with two blue wires. Connect either blue wire in the harness to either blue wire from the dynamo. There is no correct way.
Usually there is a bullet type connector close to the dynamo for each wire.
Can you post a picture.
Dave
 
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85Hokie

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BX-25D ,PTB. Under Armor, '90&'92-B7100HST's, '06 BX1850 FEL
Jul 13, 2013
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I managed to snag both wires on my two-wire dynamo (B7100d) at the dynamo. Both wires are light blue. I looked at the wiring diagram, but I cannot determine which wire from the harness goes to which wire coming out of the dynamo. I image it matters. Can anyone enlighten me?

Both are AC - either way works as Dave explains............. hook em up and fire it up.
 
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IdahoNative

Active member

Equipment
Kubota B7100D 4x4, non-HST, FEL 1630
Jan 12, 2022
114
46
28
Florida, central
The best thing about this situation is either blue wire does not matter.
If you start at the regulator/ rectifier you should find a harness heading for the dynamo with two blue wires. Connect either blue wire in the harness to either blue wire from the dynamo. There is no correct way.
Usually there is a bullet type connector close to the dynamo for each wire.
Can you post a picture.
Dave
perfect! The two bullet connections nearest the dynamo are the two I snagged. Thank you!
 

Mowbizz

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Bx25d
Aug 19, 2021
438
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New Hampshire
😂 when I first glanced at your thread then title, I thought I read “2 wife dynamo” and thought, oh boy…this should be good!🤣
 
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Henro

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B2910, BX2200, KX41-2V mini Ex.
May 24, 2019
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North of Pittsburgh PA
The following thread is interesting and on topic. Explains why what Kubota calls a dynamo is actually an alternator. Excellent thread:

 
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