Triumph Bonneville T120 Recall

Discussion in 'Technical Help' started by RickM46, Dec 28, 2024.

  1. alfie

    alfie Getting older but still going for it
    Subscriber

    Jan 27, 2018
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    Bath, Zumerset
    Small cockup on my part....
     

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  2. RickM46

    RickM46 Active Member

    Oct 12, 2023
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    #22 RickM46, Mar 30, 2026 at 6:13 PM
    Last edited: Mar 30, 2026 at 7:04 PM
    OK, guys here it is:
    I have a subscription to the Triumph Technical Information website. The following is a link to TTIs instructions to the dealer to splice in new connections to avoid the burn problem.

    Read their instructions and it looks like 3 black wires out of the alternator out of the engine block have to be spliced with 3 black wires into the main harness going up under the seat after the old connector block is cut away.

    Don't know if you will be able to follow the link unless you have a subscription:
    https://triumphtechnicalinformation...db60c2927dfaf25e4?topics=13802360331&active=0

    What could possibly go wrong: the black wires are not marked and the tech would have to keep track of which black wire splices with the next by their position into the old connector blocks.

    Thanks Alfie; you got the repair pdf that is at the TR subscription site.

    I am not nuts about this fix.
     
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  3. TRIPLE X

    TRIPLE X Senior Member

    Sep 1, 2021
    698
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    Norfolk
    Agree, not a great fix. Surely there is a connector that will not melt which could have been used? So now the alternator is permanently connected to the main harness, so how do you replace it if it fails?
     
  4. RickM46

    RickM46 Active Member

    Oct 12, 2023
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    28
    US
    #24 RickM46, Mar 30, 2026 at 8:39 PM
    Last edited: Apr 1, 2026 at 3:16 PM
    Well, just some questions:
    Why the original recall clip?
    Was there a defect in the connector blocks?
    Maybe susceptible to water/moisture causing deterioration? If so, I would just wrap a baggy around them.
    Do the connector blocks perform some other electron management function?
    Is there a way to replace the connector blocks?

    When weather gets warmer, I am going to take a ride and shoot the connector block with a temperature gun at the beginning and end to see if the connectors are heating up.
     
  5. RickM46

    RickM46 Active Member

    Oct 12, 2023
    76
    28
    US
    Regit nogara mentioned in my 'Bonneville' post on this recall that 'Water ingress maybe???'; the wrapping of a plastic bag around the block might be a fix.
     
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