rpatton wrote:I prefer resistor plugs over caps because I've had resistor caps go open short, or infinite resistance twice. Besides, if you want to get a platinum or iridium plug these days then they are all resistor. When these plug failures occurred they took out the dual lead coils I was using leaving me stranded. They were NGK caps, BTW. I don't think you want resistor caps, and plugs, and wires on a Boyer though.
This is bad news to me. I did some Googling and others have reported problems with the NGK resistor caps going open too. Some shops recommend changing them out every 2 years.
Which ones were you using? Some versions are waterproof. The ones that came with my Pazon Altair (LB05F) are not according to the NGK lit sheet (http://www.ngksparkplugs.com/docs/Resistor_Covers.pdf). They do have boots on both ends though. It looks like maybe the problem is a contact problem rather than the resistor blowing open. There is a hokey spring in there which bears against the resistor and makes a pressure contact. I still use the N7Ys and copper core wire (and have a lot of each) so will stick with the NGK caps but will try the waterproof ones (LB05FP) next time. They are $2.95 at motorcycle superstore. At least it is easy to check the caps for a flaky contact. Mine measured 4.69K and 4.79K with solid readings and they are maybe 10 months old. There is not much else out there. Champion makes one (WCX600) but they have problems too.
Was there any warning before the problem occurred like hard starting or popping and banging? How long were they in use before dying?