[The_big_dill]

Originally Posted by MistahT

We checked for spark before, after, and during swapping the 2004 Ninja parts. We tried plugs, wire, and coil, as well as what we believe to be the ecu. And yes, we grounded the plug to the frame (actually tried a few different places just to be sure) to see if we were getting spark or not.

The Vapor gauge isn't an "add on" really, it replaces the gauges. Actually, all we really have hooked up from the harness is 12v power. It's grounded to the frame, runs a signal directly from the temp sensor, and runs a single wire to a magnet on the front brakes for speed. I don't think it's connected anywhere else into the electrical system of the bike.

Well from what i know, these engines run wasted spark. So my next guess is to check continuity in the wire that delivers the signal to the igniter.