Topic: Can anyone identify this electronic ignition

[Ringo]

The bike I just bought has this (see image) ignition that has no
identifying marks or names on it. The black covering (I guess) seals the
unit except for the white plastic with screw adjustment. It has one black
wire traced to a power source so I guess it is self contained otherwise. The bike
has stock coils.
I would like to make a probable futile attempt to find directions/instructions
for the unit.
Any help would be appreciated.

[ekpent]

Prestolite ??

[CycleRanger]

Howdy! Welcome!
What bike do you have?

[Ringo]

1971 Honda CB750 Four

[CycleRanger]

Prestolite ??

That appears to be a correct answer.
http://forums.sohc4.net/index.php/topic,80458.msg900174.html#msg900174

[Ringo]

Thanks to everyone. After getting a few things on the bike squared away
I see if it will actually work.
If anyone has instructions for the unit it would help a lot.

[ekpent]

Think Terry in Aussie land is pretty familiar with those. Look for him in the Open forum section.

[PeWe]

Terry had some comments in this thread
http://forums.sohc4.net/index....opic=61557.msg668207#msg668207

[ekpent]

Terry had some comments in this thread
http://forums.sohc4.net/index....opic=61557.msg668207#msg668207

Broken link Per here on my end.

[Ringo]

Yes, I got a 404 Not Found error.

[CycleRanger]

Link fixed.
http://forums.sohc4.net/index.php/topic,61557.msg668207#msg668207

[PeWe]

Strange, works for me. But I use Tapatalk app.

[newday777]

Strange, works for me. But I use Tapatalk app.

Original link had 4 periods after index....

Fixed link has one period after index.

[Terry in Australia]

Wow, that’s a blast from the past! Yep, Prestolite. As I said 15 years ago, they weren’t great, but if yours is still working, that’s great. I had a few NOS ones that I sold, the only one I tried to use didn’t work for very long, so ended up in the bin.

If it was a Martek or Dyna S it’d probably still be working fine, but those Prestolite ignitions were pretty average at best.