1989 bombardier no spark

[zekedge]

Hello, I have tested my ignition coil to find it only produces about 20volts between it and the ground, ofcourse producing no spark. However, about 230volts are being put into the trigger coil from the CDI. My question is, is the CDI not making enough power to make the trigger coil produce a spark (thousands of volts) or is the trigger coil deffective?

Thanks for your help

 

[Dr Honda]

Trigger coil????

Your system doesn't have a trigger coil.

The old system is a regular HV CDI system. The mag (exciter) coil puts out +120v. that feeds the CDI. When it sees a reverse pulse... the CDI fires a +120v pulse to the ignition coil on the primary side. A magnetic field builds, and collapses. When that happens, you get a HV spike, out the secondary side of the ignition coil, and you get a spark.


(the voltage from the mag coil, and the charge to the ignition coil will change as RPM climb)

So... if you are getting a HV pulse to the ignition coil... but nothing out on the spark line... I'd say your coil has gone bad.

 

[zekedge]

Sorry, yea I meant ignition coil, I dont know where trigger coil came to mind. I am getting about 230volts going to the ingition coil, is this alright?

 

[Dr Honda]

Yes... if you are getting a 230v pulse to the primary side to the ignition coil... but no spark, I'd say you need a new coil.