Polarizing my Wards Riverside Generator
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Thread: Polarizing my Wards Riverside Generator

  1. #1
    Junior Member
    Name
    Andy Whitaker
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    13379
    Join Date
    Oct 2013
    Location
    England
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    Polarizing my Wards Riverside Generator

    I recently posted about the blue charging light remaining on when running my rebuilt wards Riverside 350. All of the electrics are new including a NOS generator and I am now wondering If I need to polarize it. When the bike is kicked over the blue light dims and brightens as if it is 'phasing' (if that is the word for it).

    Anyone got any ideas on which wires/contact points to do this supposedly simple task on? The bike is negative earth.

    Many thanks

    Andy

  2. #2
    Senior Member R Powell's Avatar
    Name
    Richard Powell
    Member #
    9955
    Join Date
    Feb 2010
    Location
    Aylesbury
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    516
    I don't think it needs polarizing it should be correct when it left the factory, but the flywheel might need remagnetizing as it may not be as strong as it should be. Nos parts can lose magnetizem the same as the original flywheel. I had a coil on the generator rewound by West Country windings 30+ year old nos coils will have deteriorated even if they have not been used.
    Hope this helps

  3. #3
    Junior Member
    Name
    Andy Whitaker
    Member #
    13379
    Join Date
    Oct 2013
    Location
    England
    Posts
    19
    Thanks Richard.

    I've done a bit of web research and the stator and rotor generator/dynamo set up I have (Bosch?) seems to run electromagnets (the four shoes in the stator) energized by having a battery power source supplied to it whilst the iron core rotor is rotated by the engine which then, in turn generates power via the voltage regulator?!! No magnetism involved once switched off apart from a small amount of magnetic field in the rotor (apparently.......). If I have reported that correctly I'll be amazed.

    I Polarized the generator last night and seem to have it working but we'll see.......

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