OK boys and girls, hands up who wants to tell me what I think I already know?
Your starter for 10, then....
When I was coming home from work this evening, NC started fine as usual, and after 20 miles or so I stopped for petrol. When I started her again after filling up, the starter sounded really lazy, this was the first time she'd ever done this so, when I got home I killed her and tried her again. This time the battery didn't even have enough left to turn her over. So, I'm thinking the dreaded regulator/rectifier gremlin has come a-callin'.
Any opinions? Battery was fine (flat as fook now) and I've kept it charged over the winter.
What do you think?

And your bonus questions are as follows....
2. Is there any way of testing the reg/rest to establish if is definitely shagged?
3. Assuming the problem is my reg/rec is it likely to have damaged the battery too?
4. I read somewhere that there is an aftermarket reg/rec which would be an upgrade from the stock item. Can anyone recommend a upgrade unit?
5. Where could I get one from? and,
6. How much should I be paying?

Price isn't all that important because if it needs one, it'll have to get one, either OEM or aftermarket, but I want to know what to expect.

Thanks in advance of any help.
Cheers,
John.

could have shit fuel, poor genny, loose connections, melted connectors, poorly battery

Yes
Might have
R6/R1 or get a proper Mosfet one
Rick Oliver
can be looking down a healthy hundred squids to get it all tip top. or on the uber cheap and prepare for it to happen again

What do I win?

The first thing you need to do is establish the condition of your battery. It could be flat because it is not being charged, or because it is simply dying on its own. Once you have a fully charged battery you can do the diagnosis procedures in the Haynes manual and determine if the reg/rec or stator are faulty. But you have to start with a healthy battery.

Ciao,

follow this to test your charging system.

inspect the connection from the generator to the regulator, many times this gets dirty and corrosion as it is exposed which melts the connection and you loose generator output

http://www.electrexworld.co.uk/acatalog ... G-&-RR.pdf