BantamBaz said
Good afternoon,

I've been reading this & a lot of other posts on 12 volt conversions.

I've just fired up my B175 engined D14 after a bit of rebuilding & rewire. With a DMM attached across the battery I get a 14.5+ reading.

My anolog meter is hiding in France at the moment.

Being used to cars rather than bikes I'm used to a max of around 14.2 volts.

My worry is that I could cook the battery.

I've wired it with the help of Lone Wolf's diagram & am using an eBay reg/rect. The battery is a 7ah gel type usually used as safety lighting back up.

Should I be worried about the voltage, or should I be looking at spending more cash with Rex ?

Any suggestions would be appreciated.

Thanks 

Barrie.  

Wotcha.

Anything going above around 15 volts is not good, especially if the battery is fully charged.

I had the reg/rec on my Enfield fail last year - was going over 16v.  It had been fine for quite a few years, and yes, it was an eBay cheap one.

I bought a decent one, funnily enough from Rex, and that's fine.  My speedo on the Enfield also has a fairly accurate volt meter built into it, and as you say, 14.2 is the magic figure.  In true 5od's Law fashion, I was out on the Enfield today and noticed the ammeter had dropped below zero and the voltage was down to 11.7  Turned out one of my alternator wires had worked loose in its socket, so that was an easy fix.

In short - spend around £35 and fit a decent reg/rec.  It's worth it in the long run.

EDIT - oh come on - . . . .  The phrase was "5ods Law"   As they say FFS. 

EDIT THE EDIT - Even more bits missing now - I know, I'll edit the original post.

Thanks Wolf, I'll dig deep in the coffers.

Is there any difference in way of connections from the alternator to the reg, ie. where the connected twin wires or the single wire connects. If they were opposed would it have any effect on charge ?

Thanks

Barrie.

Thanks Wolf.

So with the orange & yellow joined does it matter which of the wires to the new 4 wire reg/rect they are connected?

Barrie.

BantamBaz said
Thanks Wolf.

So with the orange & yellow joined does it matter which of the wires to the new 4 wire reg/rect they are connected?

Barrie.  

Wotcha.

With the two wires connected, just treat it as a two wire alternator.  Doesn't matter which ac wire they connect to on the reg/rec - they are normally two yellow wires. ( or two wires of the same colour )