1986-1988 Honda TRX 200SX Fourtrax Service Manual, Page 178Get this manual
IGNITION SYSTEM
IGNITION COIL
REMOVA L
Remove the spark plug cap from the spark plug Disconnect the igni ti on coil primary wires and remove the ignition call
(1) IGNITION COIL
INSPECTION
Measure the primar call resistance
RESISTANCE16.20
Remove the spark plug cap from wire and measure the secondary cOil resistance