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TOPIC: Charge coil question

Charge coil question 14 Jul 2019 09:11 #1

  • Don Dieago
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I put a cdi ignition on my dt400 at the time I wasn't worried about charging or lights. Could I possibly in theory put a It175 coil I have just to run the lights headlight and tail? also could I splice a wire from it to rectifier and it would charge battery when lights were off? Ive been charging battery with charger to run tail light and turns for now. Been haveing trouble finding a coil. The original coil wont work with my plate it rubs flywheel

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Last Edit: by Don Dieago.

Charge coil question 14 Jul 2019 15:16 #2

  • Don Dieago
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It will at least run the headlight shouldnt it?

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Charge coil question 14 Jul 2019 17:09 #3

  • MarkT
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I'm not sure if the IT175's all had the same lighting coil... they only put out about 30 watts. Pretty weak.

As far as if it will work, only you know what "CDI" you have... (stock CDI should have had a lighting coil so have to guess it's something else?)

The thing is the clearance between the lighting coil poles and the magnets is critical... if the air gap is too big you won't get much output at all... and of course, too small and it will rub. I suspect distance between the coil poles needs to sync with the magnet spacing for best output too.

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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

Charge coil question 14 Jul 2019 18:23 #4

  • Don Dieago
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I ordered one from rex's and I robbed flywheel off a mx400. They say a later dt will work but not much luck finding one. But I do like their cdi unit a lot. I dont ride at night much at all and I didnt want a 12v. My misjudgment I thought the original early dt400 coil would fit but nope

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