With key switch in off position you should get no resistance between black/white and earth (closed circuit), if it is an earth to kill key switch. If you have disconnected black/white and still don't get a spark, try earthing that wire to CDI and see if you get one, that would indicate an earth to run CDI.

 

"try earthing that wire to CDI and see if you get one, that would indicate an earth to run CDI". Again, and sorry. Please, like I'm a third grader. Earthing the black/white, you mean like touch it to the ground wire on the cdi?

Also, just thought of this,; its a brand new motor and wires coming out of engine are blue/black, black/red, green, and two other ones, which don't think are important for ignition. I am using existing wiring plug on quad in making these connections. The existing plug is a 4 wire connection plug. The old engine was a 90 cc engine. Was I supposed to upgrade the cdi box or some other component maybe..? Or as long as I am matching wires color for color then should be correct?

 

You can touch the black/white to anything that is earthed to test if it is an earth to run CDI.

As long as wiring colours are the same on new and old stators, you should be OK. You can get problems with 3 phase and single phase alternators, (the "two other ones" wires) but that doesn't affect the spark.

 

Ok, I think I'm getting scrambled up a bit on testing these components. So, testing black/red coming from stator I'm getting 60 vac's. This is by cranking engine, while grounding my voltmeter to frame and probing red lead to black red. When testing blue/white wire coming out stator , same way, I'm getting 0 vac's . And this is what I should be getting I think because I'm also getting 0 vac's on other quad which definitely has spark. First Pic is the plug from working quad. It has all 5 wires pinged and plugs directly into harness from bike. The plug is actually a 6 wire but has one empty. The other plug on non-working quad is look different, but has 4 wires pinged. The green one is bullet type connection and connects separately from harness. I don't think this should male world of difference right? All I know at this moment is I'm getting same results test with multimeter with working and nonworking quad as far as stator. So, stator I believe is fine. I been racking my brain trying to get voltage out of blue/white wire; I get 0 on both. As far as cdi box on non working quad, I tried three of them already with no change. Ugh!

Working quad plug out of stator.

 

Non working quad plug coming of stator

 

It is possible your meter isn't sensitive enough. The trigger coil only produces about 0.5v as a rule and I have known bikes to run with less. Think about it, this tells the CDI when to spark, no signal voltage, no spark.

You have a working quad, so remove ignition parts from that and fit to non working quad. Make sure pinouts on both CDI plugs are the same. Make sure the wires at the CDI plug test out right so, if your non working quad still doesn't spark, it has to be the trigger coil.

 

It makes sense. But since I'm only testing wires coming straight out of stator , the cdi would be taken out of equation for testing purposes right?

I tested vac again on working quad and now it's reading some voltage. Tested non working again but still 0. I don't get it. This is third stator and third trigger coil, including brand new one with pick up coil and still 0 voltage. The ohms is in the 135-145 readings. Must be a short or bad ground somewhere. I've read something about hitting the stator bolts and surface where they mate to casing with a wire wheel. The motor as i stated before is new and maybe the plated film of whatever they throw on there for looks is interfering with good connections on bolts. I don't know, maybe I'm way off. I'm getting good voltage from black/red.

 

You must test the same stator wires at the CDI plug (CDI disconnected), plus all others going to CDI plug in case a wire to that plug is broken. No good if you are getting 60 volts at the stator plug black/red if they are not getting to the CDI.

 

Ok, I may be on to something. I exposed wires plugging into cdi box. I traced and noticed the black/white, which has been the one not to specs per multimeter testing, it turns into three separate wires. See pic. Basically, tracing from cdi plug, black/white wire it goes towards back of quad and splices into two other black/white wires which go back towards front of quad into other harnesses. Noticed black/white wires going to front of quad and to on/off start switch and the other tobthe ignition switch. Of course, then there is the one going to the cdi box. The wires are soldered together.

I understand black/white is for turning things off. I have unpinged that black/white wire from cdi but still no spark. Maybe this connection is proper? Was getting spark before.