I'm using it on my MZ robin engine.
When I eventually looked at the robin alternator it was damaged. Due to the non availability of a Robin one I bought a 2cv alternator for £15 on ebay and a new 2cv regulator.
It is running backwards and works perfectly.
You can see it on the left of the bike just behind the air filter in my video!
The only hard part was making up a bracket to mount it.
I used a 2cv belt for ease of availability and bought a 30mm taperlock and SPZ section 110mm pulley (an SPA section may have done ) to mount to the engine drive shaft. It is fitted between the drive pulley and the engine. The Robin has quite a long shaft.
All in it cost about £50 total and was installed in about a day. I also bought a used 2cv belt cover to give me a basis to make a belt guard.
If buying from a breakers get all the parts required inc the adjuster bracket. The taperlock and pulley were about £15 online or your local bearing supplier.
The only thing is the 2cv alternator does not have any cooling fan so it must have some airflow(which mine does) If you use an alternator with a fan, like most cars, it won't be any good cooling wise if run backwards.
All alternators will run backwards.
The electrics are simple and, as my bike is cvt and electric start with no pull starter, it was important that I knew my battery was charging, so, I bought the gammatronix led indicator. It is usually on orange after starting and switches to green virtually straight away confirming the battery is charging and up to voltage. It's more than just an led as it has a small circuit attached and by removing a small jumper link it can show different levels of battery voltage by colour/blinking. I've left the jumper on so it's green for good,orange bad.
I can attach a simple 2cv wiring diagram if you want it.
The gammatronix is about £10 on ebay.
It certainly keeps things simple.
![Very Happy :D](./images/smilies/icon_biggrin.gif)