Every CDI and Magneto will have different reading's. And you want to check both CDI and Magneto several times.
In my opinion you want to have your reading's within 75-80% what is posted. This is just a reference, there is No exact readings. If your reading are not the same as posted, which they are most likely are not, go by the 75-80% within what we are reading.
Magneto
Use Low Ohm-Meter Scale About 200 Ohms
1) Check Ohms between BLACK wire and WHITE wire. Reading should be around 2 Ohms
2) Check ohms between BLUE wire and WHITE wire. Should be around 300-400 ohms.
CDI
Use Ohm Meter High Scale About 200-K
1) Positive lead on BLUE wire and Negative lead on BLACK wire should read infinite (no activity)
2) Positive lead on BLACK wire and Negative lead on BLUE wire. Should be about 130-150 K-ohms
3) Positive lead on Spark Plug wire and negative lead on BLUE wire. Should read between 135-155 K-ohms
Switch to Low Scale 20K
4) Measure between Spark Plug wire and and Black lead. Should be about 2.5 - 2.7 K- ohms
This will give you all the info you need....
John-John