Change from Magneto to Boyer Bransden ignition

[TVL_AJS1]

Hi All,

I am the proud owner of a 1961 AJS 16M that I am currently trying to get back to originality and improve it here and there.
The previous owner removed the original ignition system and replaced it with an N1 Magneto.
I want to remove the Magneto and replace it with a Boyer Bransden system.
I have been able to buy the original casings to house the system but am unsure what else is required.

Looking at the below exploded view I have identified the washers, bolts, etc. Do I also need the Cam?
Anything else I have missed?

Schermafbeelding 2020-05-02 om 16.47.04.png

Thanks,
Tim

[dave16mct]

Yes you will need an exhaust cam with internal taper and thread. Is it a 12v system? If not it would be a good time to convert to 12volts. I would look at Pazon Electronic Ignition as well as Boyer.
Dave.

[Mick D]

Do I also need the Cam?

Hi

If you are referring to the points cam on the ATD it will depend whether the electronic ignition is mechanical or electronic advanced/retarded. The Boyer system I have installed on my T160V is electronically advanced so no ATD or cam:

Boyer Rotor.png

Regards Mick

[dave16mct]

I think he means that with his present magneto set-up he has a pre-58 exhaust cam with male taper and external thread. With Electronic Ignition he needs a '58 on cam with internal taper and thread.
Dave.

[Pharisee]

I went in the other direction... When I rebuilt my basket case 1953 G3LS, I didn't have a magneto available but I did have the bottom end of a 1961 500cc engine. I used the timing case and cover, and BOTH camshafts from the 500cc on the 350cc. You won't be able to use either of the camshafts from the points engine with a magneto chaincase. I kept the points and didn't change to electronic ignition. I just had to make a bracket to hold the coil to the top frame tube under the tank. It worked very well and runs beautifully. Points and a dynamo... not a usual combination

[dave16mct]

No he won't be using the magneto chaincase, he has bought the points housing.
Dave.

[Pharisee]

No he won't be using the magneto chaincase, he has bought the points housing.
Dave.

The original post says that he's changing FROM points and coil, TO a magneto. In which case he will need the magneto chaincase etc. He will also need BOTH camshafts from a magneto engine as neither of the points ignition camshafts will be suitable.

[dave16mct]

[quote][/quote]
''The previous owner removed the original ignition system and replaced it with an N1 Magneto.
I want to remove the Magneto and replace it with a Boyer Bransden system''

Specksavers tomorrow??
Dave.

[Pharisee]

''The previous owner removed the original ignition system and replaced it with an N1 Magneto.
I want to remove the Magneto and replace it with a Boyer Bransden system''

Specksavers tomorrow??
Dave.

Whoops... yes indeed.

In that case he will need both camshafts from a points ignition engine.

[TVL_AJS1]

Thanks all for you help.

I will try to procure a post '58 exhaust cam, does anyone know if a company swaps these, as my cams are in excellent condition.

It is not a 12v system at the moment as most of the wiring loom has been snipped off.
I will definitely swap over to a 12v system.

Any benefits of the Pazon system vs the Boyer?

Cheers,
Tim