Generator or Regulator?
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Novice
Joined: Mar 2006
Posts: 16
Likes: 0
From: Detroit, MI
Generator or Regulator?
I need to pick your brains..
I have a 64FL with shovelheads and a 12V conversion. I was having some charging issues with the old genny, so I bought a new one. I still have the old Electric Franks regulator on the end. When testing the the battery, I am getting about 12.2V at 3500rpm, much less at idle. The lights do brighten up when I rev it. I replaced much of the old wire with 12gauge and soldered everything. The bike has not left me stranded but I always use a trickle charger when I park it. I always thought if the reg was bad I would be getting too much volts or nothing.
ANy ideas why I would not be getting 13V or more?
I have a 64FL with shovelheads and a 12V conversion. I was having some charging issues with the old genny, so I bought a new one. I still have the old Electric Franks regulator on the end. When testing the the battery, I am getting about 12.2V at 3500rpm, much less at idle. The lights do brighten up when I rev it. I replaced much of the old wire with 12gauge and soldered everything. The bike has not left me stranded but I always use a trickle charger when I park it. I always thought if the reg was bad I would be getting too much volts or nothing.
ANy ideas why I would not be getting 13V or more?
Road Warrior
Joined: Dec 2007
Posts: 1,854
Likes: 20
From: Eagle River WI
Get yourself a mechanical reg like Bosch or Accel I've run them all ( Franks etc ) 7 years on the mechanicals and still ticking If you can pull into a dark garage and see the lights get brighter as you rev it I don't think there is a problem !!
Tourer
Joined: Mar 2009
Posts: 260
Likes: 3
From: Fort Worth, Texas
Superp you should be getting 13 to 14v at the battery. Disconnect your regulator at the generator and check the voltage at the A terminal, should be 2 to 4v at idle. You have 2 circuits in the regulator one to charge and and the other to keep it from overcharging. Generally I've seen them fail charging. They could be set up that way because if it fails at the overcharge where more voltage comes back to the gen it would turn it into a motor and fry. Any of the regulators mentioned by sqdealgeorge are good. Good luck. Let us know if it works.
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Road Warrior
Joined: Dec 2007
Posts: 1,854
Likes: 20
From: Eagle River WI
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