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1973 ct3 source coil resistance

15 Aug 2019 14:15
Tvondra05
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1973 ct3 source coil resistance #1
I believe I have a faulty source coil, but my service manual doesnt give me what reading I should have. My coil tests 2.1 ohms @ 75 degree ambient temperature. I feel this is a bit high.

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15 Aug 2019 19:30
MarkT
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1973 ct3 source coil resistance #2
Sounds like a good reading to me.

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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16 Aug 2019 20:33
RT325
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1973 ct3 source coil resistance #3
Yep, as MarkT says, sounds good. Found my original yamaha service data from work & says 2.1ohms believe it or not so sounds perfect. Give the points a scratch & might be away.

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16 Aug 2019 20:42 16 Aug 2019 20:46 by RT325.
RT325
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1973 ct3 source coil resistance #4

Not meant to be on its side--sorry, annoying.
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