Is there a way to test a trigger coil? Can't find it by searching. Also, can the dealer test the ECM? I've tested the stator, checked all connections, tested wires for continuity, tried known-working coil and VR, replaced plugs, disassembled kill switch and cleaned the contacts (and tried with it unplugged), tested continuity on DESS. I'm at a loss (and running out of shop beer). I don't want to buy an ECM/DESS without knowing that's what my problem is. This a pull-start only sled. Any advice is welcome.