I did some measurements with the volt meter as I am in a no start situation with a Kazuma 150cc.
With cd un-plugged
cdi power to ground (red wire) 500 ohms
trigger feed to ground (blue wire) 143 ohms
And yes ignition was on as were all kill switches
now with cd still unplugged but firing engine
82 volts at the red wire
1.1 volts on the blue wire
now with the cd plugged in the yellow wire was only getting 1 to 3 volts to the coil. I also then checked the yellow wire from the cdi to the coil for continuity and it was ok. But when I then hooked the meter directly to the coil end wire it still only read 1 to 3 volts. I had an extra cdi and same results. Lynn if your around maybe some advice or perhaps I need to do something different.
Thanks
Tim

 

My comments in blue...

 

I did ground it to the engine. Will try again as you said. I also was getting 600 ohm reading from the kill switch. That l did use the Cdi ground .

 

I went out and got a new digital meter.I now have .2 volts from trigger and fluxuating numbers from ignition wire. My concern is the kill switch wire to ground is showing 600 ohms

 

600 ohms is unusually low. It should be open. But if it is causing a problem then disconnecting the kill switch wire at the CDI will eliminate that problem completely. So do that and see if it makes any difference...

So I looked back to the first post in this thread. I saw several incorrect voltages listed (which have since been measured differently with a new meter). But nowhere do I see it listed that you are *not* getting spark. I assumed so, but it is true? Are you getting spark?

 

Lynn,

Thanks for your contribution to this forum it is greatly appreciated by many. Today i went out unplugged the kill wire from the cdi and bingo it started right up. Now my questions are. It has three kill circuits, the foot brake, key switch and the kill switch. My brake light was on no problem and it was cranking the starter no problem and the kill switch stopped it if it was turned to the kill position. I thought if one of those didn't work the thing wouldn't crank. That is what took so long to figure out . If you could lead me to a course of action i will follow up.I stopped it today by shutting down the gas flow.
Thanks Tim

 

You're welcome for the help.

But spark kill circuits don't involve foot brakes. The foot brake switch is in the starter motor safety interlock circuitry. which simply keeps you from engaging the starter motor unless the brakes are applied. It doesn't prevent spark, or prevent the quad from starting. It only makes sure the brakes (applied) keep the quad still if it should start up. So there is a logical disconnect here...

Typical kill switches are:

1) One half of the two switch section ignition switch.
2) The left handle bar kill switch
3) A tether (pull cord) kill switch
4) A remote start/stop module.

Your kill switch wiring has 600 ohms to ground. Disconnecting it causes spark to return. So I would concentrate on that. Reconnect the kill switch connection to your CDI, then start unplugging the other kill switches one by one until the 600 ohms goes away.

My back of the envelope calculations based on the measurements on my 150cc quad suggest that 600 ohms could be a problem. It's on the edge.

But also let's be realistic. Often measurements that seem solid yesterday don't repeat the next day. Measurement error is legion amongst inexperienced technicians, and par for the course for experienced ones too. Don't get trapped into "I measured this yesterday" and so now it is gospel. Repeat and verify. If it doesn't measure the same then repeat until it does - today, tomorrow, and everyday. Don't be afraid to back down and say I measured something wrong yesterday. Now the reading is...

 

Lynn,
I did have two issues which may have caused some extra time fixing this problem. I had a loose connection with the cdi so I just cut off the plugs and wired it straight up. i'll probably solder them later but for now used some wire nuts and tape. The main problem was the handle bar kill switch which i now have dissconnected. I did order a new one but for now the key can turn it off. Drove around for a while today and all is good!
Thanks again
Tim