I wouldn't think the resistor caps are a good deal, on those systems, mall they do is boost spark plug voltage output, and that would indicate weak coils are used. Ask them if the resistor caps are mandatory, and what spark level the system makes.
As far as the curve, are there more than one that can be dialed into the system, or only the one shown?? It appears the system has the right way of top RPM tioming control, retard, but, is it adjustable as well, separately??
Can't see in the pictures, are each pickup coil independently adjustable, or, batch fire??
Original H1R and H2R systems are Kokusan Denki, were good in the early days, but long on the tooth now. If you run across different spray painted colors on the boxes and stators, run all of those parts as a unit, not mix and match, as colors indicate the ignition curves/retards, and all differ. There were 6 that I remember, green, pink, red, white, blue, black (no paint), H1R were usually only black, but H1R-AS and LC had the added color curves.
In the day, the better systems were used on the TR750 Suzuki race engines, they were also Kokusan, but, fired 9 sparks per rotation, one spark in all 3 cylinders, 3 times per rev. They worked really well.
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