The primary side should be at 3.9 ohms it can test from about 3.12 to 4.68 and be ok. The secondary should be 8K ohms. Or 8,000 ohms. 6400 to 9600 is ok.
Both sides can be + or - 20%
The secondary side depends on if you are testing just the coil, coil and wires, coil, wires and caps.
The book covers stock parts. If you have an aftermarket coil it can be very different.
A coil with X number of feet of wire in the secondary side gives you 8,000 ohms and 10,000 volts output a coil with X x 2 feet of wire will have 16,000 ohms and 20,000 volts output.
These figures are just for explaining a basic concept. Actual numbers will be different.
Both sides can be + or - 20%
The secondary side depends on if you are testing just the coil, coil and wires, coil, wires and caps.
The book covers stock parts. If you have an aftermarket coil it can be very different.
A coil with X number of feet of wire in the secondary side gives you 8,000 ohms and 10,000 volts output a coil with X x 2 feet of wire will have 16,000 ohms and 20,000 volts output.
These figures are just for explaining a basic concept. Actual numbers will be different.