Upgrade almost done…

[Mark2864]

Looks like a mess, and there’s still more to do, but the new 40 amp alternator upgrade is in!
Seems to have gone very well.

Question is, does the “new” sub-harness replace the old reg/rec stuff? ‍ Gotta figure that out on the next decent weather day.

1991 Honda ST1100
CT, USA

 

[John OoSTerhuis]

Question is, does the “new” sub-harness replace the old reg/rec stuff?

Yes. Not sure what the red lead and connector attached to your used harness is for though. What upgrade references are you using?

 

[Mark2864]

Yes. Not sure what the red lead and connector attached to your used harness is for though. What upgrade references are you using?

I just have the Haynes manual which has wiring diagrams for ’90-‘02 but no good pictures or upgrade references for the wiring. Sub-harness and damper shaft w/plate came from a ‘98 police bike in the UK.

 

[Mark2864]

Yes. Not sure what the red lead and connector attached to your used harness is for though. What upgrade references are you using?

I’m assuming that I’d block/tape off the old unused wires that aren’t needed anymore, but I’m not positive. Haven’t done it before and I’m a rookie with electrical!

 

[John OoSTerhuis]

What upgrade references are you using?

I just have the Haynes manual

If that’s all that can make the upgrade difficult. Most of the alt upgrade stuff is gone from this site. Here’s a great source:
http://www.st-riders.net/index.php?topic=942

The yellow leads and the white lead are discarded, along with the white 6P and Voltage Regulator. The black 2P with the black and white leads is still used/retained but with the white lead clipped. The other black lead should be capped, or used as a switched source. The red lead should be capped, or used as an unswitched source. HTH

Edit: the later Clymer edition is supposed to have a section on the alt upgrade. I can’t vouch for how good/accurate/thorough it is.

John

 

[Mark2864]

If that’s all that can make the upgrade difficult. Most of the alt upgrade stuff is gone from this site. Here’s a great source:
http://www.st-riders.net/index.php?topic=942

The yellow leads and the white lead are discarded, along with the white 6P and Voltage Regulator. The black 2P with the black and white leads is still used/retained but with the white lead clipped. The other black lead should be capped, or used as a switched source. The red lead should be capped, or used as an unswitched source. HTH

Edit: the later Clymer edition is supposed to have a section on the alt upgrade. I can’t vouch for how good/accurate/thorough it is.

Jo

If that’s all that can make the upgrade difficult. Most of the alt upgrade stuff is gone from this site. Here’s a great source:
http://www.st-riders.net/index.php?topic=942

The yellow leads and the white lead are discarded, along with the white 6P and Voltage Regulator. The black 2P with the black and white leads is still used/retained but with the white lead clipped. The other black lead should be capped, or used as a switched source. The red lead should be capped, or used as an unswitched source. HTH

Edit: the later Clymer edition is supposed to have a section on the alt upgrade. I can’t vouch for how good/accurate/thorough it is.

John

Thanks for the tips and links!

Things are coming together pretty well. Discovered I had a pinhole leak in my fuel tank when I took it out, so I ordered a “new” one from eBay. Just gotta soak the inside with Evapo-Rust and put things back together. Hopefully I’m getting closer!