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36mm carb modded 78 Dt400

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Replied by Mothersbaugh on topic 36mm carb modded 78 Dt400

FrankC wrote:


Interesting...work. Just thinking that would never hold up in the Wyoming wind, where we use a 3' length of 3/16" logging chain for an anemometer. When it stands out straight, we're in trouble.
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23 Jan 2021 13:51 #71

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Replied by FrankC on topic 36mm carb modded 78 Dt400

Those are cool little clamps Mark. Thank you too for the generosity. darinm I probably would have done the same thing. I just received an e mail from Rex Speed Shop that I should run a ground wire from the stator plate for the charge coil. Mothersbaugh no doubt. I rent so it will need to be replaced. Every year something happens to it.
23 Jan 2021 14:25 #72

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Replied by RacerClam on topic 36mm carb modded 78 Dt400

I offerone tip here . All transfer portrs should open at the same time also the boost port , It will be more responsive everywhere .

Rich
racerclam
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23 Jan 2021 14:45 #73

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Replied by FrankC on topic 36mm carb modded 78 Dt400

Thank you brother. Yes, next time I'm in the cylinder I will mod the ports equal in opening. And just give a little touch on the exhaust for balance of flow.. There is so much in the internet we shouldn't listen to Rich on many subjects. We have to weigh everything
23 Jan 2021 15:32 #74

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Replied by FrankC on topic 36mm carb modded 78 Dt400

Added the ground wire to the stator, or charge coil to be precise, as directed by Rex Speed Shop
Last edit: 28 Jan 2021 18:28 by FrankC.
28 Jan 2021 18:27 #75

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Replied by FrankC on topic 36mm carb modded 78 Dt400

Here is how I routed it by the charge coil
28 Jan 2021 18:32 #76

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Replied by FrankC on topic 36mm carb modded 78 Dt400

This is how I got the neutral wire and both case grommets installed. I used 18 gauge wire of the same color to extend my old wiring and add the ground to the source coil. Note i colored the wire with permanent marker to proper color at the ends. Dont want to reverse connect those.
Last edit: 28 Jan 2021 18:41 by FrankC.
28 Jan 2021 18:39 #77

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Replied by FrankC on topic 36mm carb modded 78 Dt400

Wireing connected up from stator
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28 Jan 2021 18:48 #78

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Replied by FrankC on topic 36mm carb modded 78 Dt400

4 wires are connected to the oem wiring harness. Sky blue neutral, stator- green/ wh, yellow, and black ground. 3 to cdi directly( i cut off the pin connector earlier) I ran the very long wire harness from the new cdi down under the air box lid over the regulator to connect to the source coils wiring in the same general area as the other wiring connects.
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Last edit: 28 Jan 2021 21:29 by FrankC.
28 Jan 2021 19:03 #79

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Replied by FrankC on topic 36mm carb modded 78 Dt400

Wiring to cdi from stator. 3 wires in 3 out from cdi. I removed the ends of the 3 wires out and connected the black/wh stripe directly to the oem wiring harness. That's the kill wire that comes from the key switch and kill switch handle bar. The new cdi box is shorter and much thinner than the old rex cdi box i bought years ago and also the oem cdi. So for now to keep it in place I improvised a little. I put a piece of inner tube in the hold down strap.
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Last edit: 28 Jan 2021 19:14 by FrankC.
28 Jan 2021 19:10 #80

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