Originally Posted by
ps2fixer
Maybe it's not the coil? There's a capacitor in the CDI box that get's charged up from the exciter coil, then when the pulse generator say to fire, it dumps that charge to the coil. Maybe that capacitor is weak, any chance you have another CDI to test my theory?
I assume the exciter coil tests in spec. Doubt you'd have the tool, but if you happened to have a peak voltage tester (adapter that plugs into the multi meter), you could check if your exciter coil is putting out 100v+ at kick start rpm. If that tests good, do the same test on the black/yellow coil wire to ground and see if the CDI output is similar.
Also, multi meters are not always super accurate 1 ohm and lower testing. Do you get a 0 ohm reading when you short the probes together? The meter I use all the time (RadioShack brand) reads 0.0 when I do that, the cheap chinese one I bought off ebay looks exactly like yours but mine is black and no outer shell, and it reads 1.4-3.6 ohms. It's really inconsistent and changes with how well you hold the probes together.
For fun I grabbed my 85 350x coil off which I'm pretty sure is the same specs as yours, and check out the meter readings. 0.1 vs 6.2. I trust the radio shack one a lot more than the china knockoff, I also have a Fluke floating around, but it might be at my dad's house. Btw, the coil works great on my machine, so I'd assume it's in spec.