TCI Replacement 2020 It Works

[Team Junk]

Funny thing.
I have seen gifs since the Compuserve days but until today hadn't seen the need to create one .

I want to be able to do it local not the "Cloud"

If a picture is worth a thousand words then a gif should be worth 3-4 thousand.

Precision machine tolerances only here at Eaglesnest Laboratories.

 

[Team Junk]

This was on @DogBunny 's rat bike. I think the Ghost my be the problem. Looking into it.

 

[Team Junk]

I'm pretty sure the ghost is the advanced coil feedback into the retarded coil.

Just a theory. I think I can fix it.

 

[DogBunny]

This was on @DogBunny 's rat bike. I think the Ghost my be the problem. Looking into it.

View attachment 333141

Been sitting on this pic for 4 months. 2Many (top) and Team Junk scoping the Gonzo'd Super Rustbucket.

 

[johnnmcguire]

I'm having timing advance problems after putting this together. The pin out diagram for the CDI says coil is orange and ground black so I tried switching the red striped white and the white striped black on the opposite side of the plug. Didn't work. But when I look at my pickup the orange and black are connected to it.

GN250 85-01 Air cooled single.

View attachment 167152

They made a lot of them for a long time so the clone TCI boxes are cheap.







250 cc = 20hp Matching state of tune for a 650 is 52hp so the box should keep up with the 650’s needs.

20 degrees advance

TCI box is cheap enough to keep a spare under the seat.

The electronics mount on the battery box, a much cooler and less vibration prone area vs. the end of the camshaft.

Crankshaft timed so no cam chain whipped timing variations.

Uses stock pickup, rotor, kill switch, coils and wiring.

Non TCI bikes need a magnet added to the rotor and a pickup(single pole will work)

Two Many’s Timing chart

View attachment 167153









Power draw topped out at 1 amp @12.4v so about 12watts at 5500 RPM.
Power draw is 0 when not rotating then goes up

proportionally to rpm.


Edit
Is polarity sensitive. If your idle advance is to high reverse pickup leads.

 

[Team Junk]

What year engine and frame ?