Proper wiring of Coils/Condensor/Points Question.

[Evorussell]

I could probably get this answered accurately/quickly by emailing/PMing PJ but....Since I searched and didnt find an answer after looking pretty hard, I figure i should post this and then the next guy can find it.....


First -
On the CB360 there is only one condesor module but both coils wire into it.

Are there two separate condensors in this module?

It doesn't make sense to me that both coils would wire into the same single condensor. -Doesnt have to make sense, just makes me feel better.

Second -
How exactly does it wire in?

I plan to use aftermarket coils, and found this seemingly useful diagram showing exactly what I want (attached)
However, it labels "condensors" rather than "condensor" and then shows black wires running into them.

Every stock and aftermarket condensor i have seen for the CB360 shows a blue and yellow wire, so my concern is wiring the correct wire into the condensor(s).

 

[AlphaDogChoppers]

The CB360 condenser module is two separate condensers. The two wires are interchangeable.

 

[Evorussell]

Further clarification of the diagram...

The respective wires running to the points set show that they are split at a "Y" with the connection from coil--->condenser.
Essentially there is no "output" wire with the condenser, it is wired in "parallel" rather than "inline/before" the points?

 

[AlphaDogChoppers]

Correct. Condensers don't conduct direct current. The condensers are basically across the points. This diagram explains how it works:

When the points close, a large current flows through the primary of the coil, and builds a strong magnetic field. When the points open, the magnetic field suddenly collapses. The collapse of the magnetic field induces a high voltage, (like around 20,000V - 30,000V in the secondary of the coil. The secondary of the coil has many thousands of windings, therefore the collapse of the magnetic field induces a high enough voltage to generate a spark.

The primary of the coil has a few hundred windings, and a voltage spike of a few hundred volts happens there. The job of the condenser is to absorb and store that voltage spike, which would otherwise cause the points to burn. When the points close again, the voltage spike stored in the condenser is fed back into the primary of the coil, enhancing the power of the spark.

 

[crazypj]

Nice diagram and explanation

 

[Evorussell]

Forgot to come back and post a thank you.

So

Thank you for the info!

 

[blueandy]

not to thread jack, but im wondering about coils myself. specifically aftermarket coils from rd350 mated to cb360. i read on honda twins that there were two variations, one set that is internally grounded and one that is not. when i did the coil test that sonreir sent me,they fired right up. but when i had them directly mounted to frame like the stockers , no sparky. so im guessing im going to put some rubber grommets on the mounting bolts and see if that makes a difference. can anyone else elaborate on wether the yma rd350 coils have two separate coils?

 

[SONICJK]

Is there paint on the frame where they are mounted? You either have to grind off some paint or run a ground strap to them.

 

[blueandy]

yea its actually high enamel tractor paint with hardener. i cant get it through my mind actually how the coils ground. is it through the mounting bolts of the actually coils? heres a link to the pic of the coils themselves.



http://www.mikesxs.net/product/17-6805.html

 

[AlphaDogChoppers]

The secondary grounds to the frame. The primary gets its ground through the points.

 

[blueandy]

so i definitely nned to clean the paint at the coil mounting spot?

 

[SONICJK]

Yes.
Or you can run a wire from the coil bolt to a frame ground.
whichever you prefer.