I have a honda gx 390 on my splitter. It appears to have a coil issue. Any way to bench test these. I have pulled what I believe is the coil kill wire off and tried to pull over and nothing. I wire brushed the coil and flywheel. Any input would be helpful. It ran last fall. I tried to start about a month ago with no luck. I just now got to it. So it hasn't ran since November.