Well, I've replaced the Boyer
(went with Vape instead) and so far so good. A Boyer
replacement would have been around $90 to $100, and the entire Vape kit was $112 (for the Mk I model). I haven't done any real miles but have not had the motor cut out through multiple circuits around the block (usually managed no more than 1 1/2 turn around before the Boyer
would cut out).
I'm still not certain that the issue was with the electronics in the Boyer
itself but more likely one of the wires coming out of it. I could have rewired but, after 25 years, it had served us well. If the vape lasts as long I'll be 70 and it will likely be someone else's issue by then (maybe my daughter, though I doubt it)
I have to say the Vape install was clear-cut, especially matching the mark on the rotor to the stator plate. The Boyer
's "paint dot" method was good for getting in the ballpark but the Vape timing was dead on first try. Maybe it's just a smaller ballpark
Lastly: I recently invested in a pair of ratcheting crimping pliers ($21 on Amazon). Holy crap, what the hell have I been doing all these years? Every connection is double-crimped nice and tight. They came in handy to fix the burnt headlight connector and replacing the EI. Anyone still using the auto parts store strip and crimp pliers should seriously look at getting a pair of these.