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I thought I'd start a new thread since my original thread was under the fuel/carb section, and I've narrowed it down to a coil/ignitor problem. Here's the recap:
I originally thought I had a carb problem because of a rough idle and the fact that I would hit a 6000 rmp ceiling. Then I noticed that my bike wasn't firing on cylinders 2 and 3. I replaced the coils with Dyna DC1-1 and also got new spark plug wires, and new plugs. That seemed to fix the issue for about an hour, but then again I wasn't getting any spark out of the coils for cylinder 2 and 3. I went through the ignition troubleshooting procedure on Bike Cliff's site. My coils have the correct resistance values, and my signal generator also has the correct resistance values. However, I failed the ignitor test procedure (couldn't get the plugs to fire using 1.5V battery or a multimeter).
I then followed many people's advice and checked the voltage at the coils. I was only reading 8.8V, so I performed the coil relay mod. I now read about 11.2V. That didn't fix my problem though. I still don't get a spark at 2 and 3.
One thing I did find interesting is that I measure different voltages on the wires running in to the coils. With the ignition turned to ON, on the left coil (for cylinders 1 and 4 that are firing properly) I read 11.2V on the orange/white wire and read 1.75V on the white wire. On the right coil (for cylinders 2 and 3 that aren't firing properly), I read 11.2V on both the orange/white wire and the black/yellow wire. This seems strange.
I think at this point it seems all indications are pointing towards something being wrong with ignitor. Especially considering that I didn't pass the ignitor test, coupled with strange voltage readings I'm getting from the wires coming from the ignitor.
Do you guys agree? Is there anything else I can try troubleshooting before I go an look at the Dyna S ignition systems?
I originally thought I had a carb problem because of a rough idle and the fact that I would hit a 6000 rmp ceiling. Then I noticed that my bike wasn't firing on cylinders 2 and 3. I replaced the coils with Dyna DC1-1 and also got new spark plug wires, and new plugs. That seemed to fix the issue for about an hour, but then again I wasn't getting any spark out of the coils for cylinder 2 and 3. I went through the ignition troubleshooting procedure on Bike Cliff's site. My coils have the correct resistance values, and my signal generator also has the correct resistance values. However, I failed the ignitor test procedure (couldn't get the plugs to fire using 1.5V battery or a multimeter).
I then followed many people's advice and checked the voltage at the coils. I was only reading 8.8V, so I performed the coil relay mod. I now read about 11.2V. That didn't fix my problem though. I still don't get a spark at 2 and 3.
One thing I did find interesting is that I measure different voltages on the wires running in to the coils. With the ignition turned to ON, on the left coil (for cylinders 1 and 4 that are firing properly) I read 11.2V on the orange/white wire and read 1.75V on the white wire. On the right coil (for cylinders 2 and 3 that aren't firing properly), I read 11.2V on both the orange/white wire and the black/yellow wire. This seems strange.
I think at this point it seems all indications are pointing towards something being wrong with ignitor. Especially considering that I didn't pass the ignitor test, coupled with strange voltage readings I'm getting from the wires coming from the ignitor.
Do you guys agree? Is there anything else I can try troubleshooting before I go an look at the Dyna S ignition systems?
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