Reducing 20v ac to 6v ac

[budgie955]

Well done, you got the result!

Hi
Can you tell me what this component does please? Its not wired into the generator system and its missing from the stator on my bike...I believe that is the problem
Thanks

 

[mainline]

Hi
Can you tell me what this component does please? Its not wired into the generator system and its missing from the stator on my bike...I believe that is the problem
Thanks
View attachment 118704

It was probably a coil for charging the battery.

 

[budgie955]

It was probably a coil for charging the battery.

No battery on the bike, this is standard for this bike

 

[mainline]

No battery on the bike, this is standard for this bike

Yes, which is why it doesn't need the extra coil.

 

[budgie955]

Yes, which is why it doesn't need the extra coil.

I fitted the ac voltage regulator but it still popped the bulb...confused dot com

 

[mainline]

I fitted the ac voltage regulator but it still popped the bulb...confused dot com

Are you sure you wired it correctly, did you measure the voltage at the lamp.


AC regulators connect to the generator winding so that excess voltage can be dumped to prevent bulbs blowing.

When fitting an AC regulator simply connect the yellow wire to the feed from the generator and earth the case.

The regulator case must have a good earth directly to the generator. Where there are two
wires from the loom, one will be earth, the other will connect to the regulator’s yellow. You’ll need a multimeter to check which is which or the wiring digram.

AC systems require the earth to be as good as the feed wire. Relying on the engine mounts is not good.
Where problems persist adding an earth wire to the regulator mounting bolt, direct to the engine case can help.
Poor earthing is the most common cause of problems.

 

[budgie955]

Are you sure you wired it correctly, did you measure the voltage at the lamp.


AC regulators connect to the generator winding so that excess voltage can be dumped to prevent bulbs blowing.

When fitting an AC regulator simply connect the yellow wire to the feed from the generator and earth the case.

The regulator case must have a good earth directly to the generator. Where there are two
wires from the loom, one will be earth, the other will connect to the regulator’s yellow. You’ll need a multimeter to check which is which or the wiring digram.

AC systems require the earth to be as good as the feed wire. Relying on the engine mounts is not good.
Where problems persist adding an earth wire to the regulator mounting bolt, direct to the engine case can help.
Poor earthing is the most common cause of problems.

Hi
Wired as per rex wiring diagram and I ran a separate earth to the reg from the stator .
I'll have another look this week at it, and get my meter on the lighting circuit, see what I'm getting
Thanks for the advice

 

[mainline]

Hi
Wired as per rex wiring diagram and I ran a separate earth to the reg from the stator .
I'll have another look this week at it, and get my meter on the lighting circuit, see what I'm getting
Thanks for the advice

Can you tell me the model of the bike /year engine etc.

 

[budgie955]

Can you tell me the model of the bike /year engine etc.

1976 honda mr175 elsinore this is the wiring diagram
Regards

 

[mainline]

1976 honda mr175 elsinore this is the wiring diagram
Regards

Unless the regulator is duff or the wiring is wrong, it should work.

The other way is to use the supplied rectifier and put a battery on it, at least that will give you lights without having to run the engine and have the lights dim.

The other way is to covert it to the cdi type one.