Posted: Sun Jan 20, 2013 3:31 am
So, I'm trying to bring a quad back to life, and had something VERY bizarre happen. I've been through all the systems and finally concluded that the problem is in the ignition. So, I pull the coil/plug and set it up on the subframe to watch the spark. Looks like a freakin' taser going off. About 8 pulses per engine rotation - nonstop. So, I throw in a new coil. And. NOTHING. No spark at all. Now, I have a few resources, so I try four more new coils. Then, two used ones that I had tested so I know that they were good. Then, finally, for giggles, one old crappy one that has been floating around on a shelf. Again, NOTHING. Throw the original one back in and I'm back to machine-gun sparks.
As I type this, I realize that it's probably the original coil (Old Sparky) that's defective and the other eight are working okay. So the problem is in the ECU. When I get to the shop again I'll set up a new ECU and try that.
Your thoughts/advice???
As I type this, I realize that it's probably the original coil (Old Sparky) that's defective and the other eight are working okay. So the problem is in the ECU. When I get to the shop again I'll set up a new ECU and try that.
Your thoughts/advice???