Ok, this is my riding lawn mower. I was using it the other day, and it was running great, just like always. I stopped to empty the bags, and then returned back to the mower. When I started it back up, it suddenly just died just like if you pulled the wire to the coil on your Camaro. Anyway, I checked and cleaned the air filter. I pulled the fuel line on the other side of the fuel filter and had good fuel flow through the filter. I checked spark, and was getting a little spark, but not a consistent spark every time the piston was at the firing cycle. I bagged the troubleshooting, and just finished the lawn with the push mower. So today I drained the fuel, and the fuel line, and added new fuel. I thought maybe I had bad gas. Again, it wouldn't start. So, I check spark again, and get a very intermittent spark, and then no spark at all from either plug. By this time I'm using the start feature on my battery charger, so I have plenty of torque to turn the engine over. So, looking at my pic, can I assume I need the part that has the two plug wires coming out of it? If so, what is that part called? Thanks for any help!! EDIT: I have re-sized the pic three times, and it just stays BIG........sorry.