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Points vs CDI ignition coil question.

  • Gr8uncleal
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Points vs CDI ignition coil question. was created by Gr8uncleal

I note that Yamaha list different coils for the 1974 DT250A (points) and DT360A (CDI) models.

A previous owner has converted my DT360A to run with points.

Are there any significant differences between the two coils used on these models?

Thanks.
06 Mar 2026 08:48 #1

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  • MarkT
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Replied by MarkT on topic Points vs CDI ignition coil question.

Technically, there is a difference in specs, yes.  Practically?  Not that I can tell.  I've used Yamaha CDI coils with points and Yamaha points coils with CDI.  Never had an issue.  

(Perhaps that because the "energy transfer" points magneto design Yamaha used on these bikes has been described as a "mechanical CDI"?)
1963 YG1-T, 1965 MG1-T, Allstate 250, 1970 CT1b, 1971 R5, 1973 AT3MX, 1974 TS400L, 1975 RD350, 1976 DT175C, 1976 Husqvarna 250CR, 1981 DT175G, 1988 DT50, 1990 "Super" DT50, 1991 RT180, 2017 XT250
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Last edit: 06 Mar 2026 10:13 by MarkT.
06 Mar 2026 10:11 #2

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Replied by Gr8uncleal on topic Points vs CDI ignition coil question.

Thanks Mark.
06 Mar 2026 10:28 #3

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