Generator upgrade

Discussion in 'Electrical' started by dougjensen, Dec 9, 2010.

  1. dougjensen

    dougjensen New Member

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    I would like to change the 6 volt model 50 generator on my 45 flathead to a newer 12 volt. Does anyone know witch model may fit with the least amount of modification?
     
  2. Jack Klarich

    Jack Klarich Expert Member

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    :: Panhead and Flathead site :: might try this and welcome to the Forum and your first post Capital Jack:s
     
  3. Chopper

    Chopper Senior Member

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    Welcome to the forum dougjensen, you might have a look here, they make good made in USA generators and have a good tech page.

    Cycle Electric Inc
     
  4. Fossil

    Fossil Active Member

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    Going to twelve volt may require some wire and bulb replacing. I would go with a 12 volt generator with the electronic voltage regulator on the end. You can keep the stock mechanical voltage regulator on for looks.
     
  5. NEWHD74FAN

    NEWHD74FAN Experienced Member Retired Moderators

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    A lot of helpful hints...the key here is to what extent are you upgrading. The reason for going to 12V was to allow more starting voltage reserve, (compensates for wiring losses, hence the need for ballast resistor to switch the ignition system back to 6V system...to save points and such. The rest of the changes were necessary because double the voltage shortened bulb life, so all the bulbs were changed. Then when electronic regulator, ignition, computer control etc. evolved, they necessitated more changes. So the real question is are you going "all the way" or are you sticking with the points ignition system and "partial 12V upgrade"...as it affects the "classic" fundamental operation of the bike. Keep us informed as to your progress.
     
    Last edited: Dec 9, 2010
  6. dougjensen

    dougjensen New Member

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    Thanks to all for the info and links.