This might interest some owners of big twins [crank ignition/generator]

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This might interest some owners of big twins [crank ignition/generator]#6959

By Bullet Whisperer - Tue Dec 20, 2016 8:50 am

- Tue Dec 20, 2016 8:50 am #6959

I recently fitted a crankshaft driven electronic ignition and generator to a MK1 Interceptor engine I rebuilt, which was fitted with a belt primary drive. Here are some observations of some alterations I had to make to get it all to fit ... https://www.youtube.com/watch?v=LOKCEec4bcI

This might interest some owners of big twins [crank ignition/generator]#64747

By papasmurf - Tue Dec 20, 2016 10:12 am

- Tue Dec 20, 2016 10:12 am #64747

This might interest some owners of big twins [crank ignition/generator]#64749

By Bullet Whisperer - Tue Dec 20, 2016 1:30 pm

- Tue Dec 20, 2016 1:30 pm #64749

Thanks for the above, papasmurf! Regards, Paul.

This might interest some owners of big twins [crank ignition/generator]#64750

By Mark M - Tue Dec 20, 2016 2:13 pm

- Tue Dec 20, 2016 2:13 pm #64750

Very interesting. Thanks Paul, I have looked at that system and wondered about the fit. I note that engine has a Series 2 primary cover, would the Owner be interested in swapping for a S1 type? I could really do with getting the right one for my S2!

REgards, Mark

This might interest some owners of big twins [crank ignition/generator]#64753

By Bullet Whisperer - Tue Dec 20, 2016 6:24 pm

- Tue Dec 20, 2016 6:24 pm #64753

Hi Mark, the primary cover has been modified with the addition of an extra inspection plug, if that's what caught your attention? I will mention you expressed an interest next time I speak to the owner, if you like. Regards, Paul.

This might interest some owners of big twins [crank ignition/generator]#64755

By Mark M - Tue Dec 20, 2016 6:48 pm

- Tue Dec 20, 2016 6:48 pm #64755

Thanks Paul, you have my email. Maurice, the ex-Factory guy, said early cases were hand made before they got around to having the casting modified. Only the S2s had them so you could see the rotor timing marks.

REgards, Mark

This might interest some owners of big twins [crank ignition/generator]#64762

By Count Johnny - Wed Dec 21, 2016 1:15 am

- Wed Dec 21, 2016 1:15 am #64762

Nice work.

This might interest some owners of big twins [crank ignition/generator]#64763

By Barnes - Wed Dec 21, 2016 6:25 am

- Wed Dec 21, 2016 6:25 am #64763

I fitted one of these to a mates bike as part of another adaption. In my experiance the ignition curve is not properly suited to the enfield twins. The electrex system reaches full advance at around 4500-5000 rpm. Meaning that on our twins it is never properly advanced. I set ours as it said in the book but the bike developed no power. I had to advance the timing by a fair few degrees at stationary to get her to even think about running properly. But it means that she is prone to kick back when starting. Also found that you need to change bulbs to led style as it doesnt provide a decent charge for extended night running. Ed

This might interest some owners of big twins [crank ignition/generator]#64774

By Adrian - Wed Dec 21, 2016 5:04 pm

- Wed Dec 21, 2016 5:04 pm #64774

Electrex World also offer a version for classic Bullets and other alternator singles.

This might interest some owners of big twins [crank ignition/generator]#64806

By andy berry - Thu Dec 22, 2016 9:24 pm

- Thu Dec 22, 2016 9:24 pm #64806

The units are designed for Norton Commandos,they need abit of work to fit. ie new mounts and spacers etcbut will fit in the standard 56 onwards twin cases they supply both self powered ignition and alternator. and work very well giving good starting and good charging output. I ve fited these on quite a twins from early super meteors to mk 1a interceptors ive also run them on bullets of various sizes and work well on them to. andy