Please Help...No Spark 1-4

[MichaelLee]

I have been pulling my hair out. Im a new bike owner and its a 1990 FZR 600. I am getting absolutely no spark at all in 1 through 4. Bike ran great Saturday, but wont start now. I'm getting voltage to the CDI and to the coil packs. I have grounded the spark plugs to the block and still no spark. Is there a way I can test the coil packs or CDI to make sure that I'm not wasting money. I'm on a really tight budget and need help.

[DonTZ125]

You CAN test your coils on the bike without a TCI, but it isn't for the faint of heart:

1. With the power off, unplug and test the primary resistance of the coils. If they are obviously blown, there is no point in proceeding to the next steps.
2. Unplug the 6-pin connector on the TCI.
3. Test the resistance of the GREY (2-3) and ORANGE (1-4) wires, from coil connector to TCI connector. They should be awfully low. High resistance means a wiring problem.
3a. Plug coil connectors back in! (forgot this step initially)
4. Strip two short leads at both ends. Insert one end of one lead into the BLACK wire terminal on the TCI connector; insert one end of the other lead into the ORANGE wire terminal. Ensure the lead ends are NOT touching.
5. Pull either the #1 or #4 spark cap; insert a spare plug and ensure it is in good contact with the head.
6. Ensuring the lead ends are NOT in contact, turn on the key and kill switch.
7. Tap the lead ends together ONCE, as quickly as you can - do NOT hold them together! A spark should be seen at the plug; a spark may also be present at the lead ends. Repeat once or twice if uncertain; performing this in the dark or with a helper may be more certain.
8. Turn the power off. Set up to test the GREY lead and either #2 or #3 plugs; turn on the power and test.
9. Turn the power off, replace all displaced connectors.


Holding the leads together WILL destroy whichever coil is being tested! The normal dwell time is measured in milliseconds; significant damage will probably occur in less than a second! CONDUCT THIS TEST AT YOUR OWN RISK