Test the wiring between the computer and the coil.
You cannot test it with a diagram. You will need a multimeter to test the coil. Click the link.
pluginyerarse
If it runs well when dry it's probably bad ignition wires, coil(s) or module. Ist choice would be the wires. Easiest way to test is to get a squirt bottle filled with water, open the hood at night and spray down the wires & ignition parts with water. Then look for arcing and this will tell you where the problem is.
ohm it.
A 1995 Geo Metro ignition coil is tested by measuring the resistance across the coil. If it exceeds the manufacturer's recommendation, it must be replaced.
test ignition coil,ignition module,pick-up coil,electronic spark control,and knock sensor
To test the ignition coil of a Kawasaki Rouser 135, you can use a multimeter to check the resistance between the primary and secondary windings. Compare the reading to the manufacturer's specifications to determine if the ignition coil is functioning correctly. You can also visually inspect the coil for any physical damage like cracks or corrosion.
You test an ignition coil by checking the resistance with an ohm meter. The resistance values should be something like, Primary winding .3 to 1 ohms, Secondary winding 8,000 to 11,500 ohms.
If you are not getting spark to any of the plugs could be coil rotor and/or cap HEI ignition?
let the engine running, lift off the ignition coil one by one after opening the screw...a tick sounds will be heard ... no tick sound and gasoline leak on the plug thread means the ignition coil is busted.
Try the ignition control module. Had the same problem with mine $36 part fixed it. The ignition control module is in the distributor and so is the pickup coil, but the ignition coil is by the battery. There is a spark test that can be done. If it was already done and couldn't see a spark, then it could be the ignition coil it self , the ignition wire, or any possible electrical connections.