Ref to datas of these [光阳 Kymco 豪迈125 (REAL gy6) | 三阳 SYM Duke125 | 本田 Honda CHA125 (engine family: JF04) ] early 2-valve air-cooled scooter will solve chinese headacne...
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In modern Honda manual
Source >=100v (40+ is enough to see spark, these often failed. DC-CDI is a quick fix) |
P.c >=0.7v (trigger is RARE to fail)