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Thread: regulator rectifier getting warm

  1. #1
    Join Date
    26th April 2009 - 18:33
    Bike
    SV1000s
    Location
    Auckland
    Posts
    54

    regulator rectifier getting warm

    pretty sure the regulator/rectifier on my SV1000 is cooked.

    battery isn't charging and I'm getting 12.2v on idle and 12.5v at 5000rpm (voltages steady).
    also getting some minimal AC voltage across both battery terminals.
    I know there is also an issue with the stators on the K3/4 models of these bikes but I've also done 100,000km so I'm expecting wear and tear on these parts. I can't get in to the regulator/rectifier plugs easily so thought I'd ask here.
    until the parts arrive I've been charging the bike each day.

    -is it normal for a regulator/rectifier to warm up when using a trickle charger on the battery?
    It's not getting hot, just fairly warm.

    -with those symptoms should I assume the stator is gone too or because the "regulator" part is still working since I'm getting steady voltage and it's not going over voltage.

  2. #2
    Join Date
    25th March 2004 - 17:22
    Bike
    RZ496/Street Triple R/GasGas/ etc etc
    Location
    Wellington. . ok the hutt
    Posts
    16,856
    Stator I'd say. Test AC of each phase, but that means getting to the plug. One will be knackered. Actually check that plug well for burning too. Tags run warm which is why they are finned
    I've been told. Dreaming`s free.
    Think I'll go, back to sleep.
    Everybody listen, voices in my head
    Everybody listen, do yours say, what mine says?

  3. #3
    Join Date
    26th April 2009 - 18:33
    Bike
    SV1000s
    Location
    Auckland
    Posts
    54
    Looks like you're right.
    Had enough spare time, took the regulator off and it passed all diode tests.

    Stator is producing AC voltage but it's low and inconsistent.
    My guess is when i open the cover possibly a burnt coil but also likely the flywheel magnets have moved so will have to do the regluing and JB weld everyone mentions.
    Crosstalk with the coils would cause that.

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