Posted July 13, 200915 yr Hello, Well yesterday I was running low on gas, so as I was driving I reached down and turn the petcock from On to Reserve. But just as I finished doing this I got a huge electrical shock. I am now trying to find out what could cause this. Any thoughts? I might have touched the pickup coil wire when I was turning the petcock, or maybe the spark plug wires. The spark plug wires are brand new and have new plug caps on them, so I didn't think this would be the problem, but the shock was very strong. Is the pickup coil on top of the cylinder outputing a high voltage too? Any thoughts would be much appreciated.
July 13, 200915 yr Your finger was a better ground than the plug with it's small gap/ Might be time to check the plugs and gap. You said all the wires and caps were new so that probably isn't a problem. Maybe the coils need to be grounded a little better, the mounting bolts for the coils usually form the path for the plugs back to the coils.
July 13, 200915 yr Moderator k, or maybe the spark plug wires. The spark plug wires are brand new and have new plug caps on them, so I didn't think this would be the problem, but the shock was very strong. Is the pickup coil on top of the cylinder outputing a high voltage too? Any thoughts would be much appreciated. Spark plug HT cables are almost definately the problem, HT shocks hurt I know (got the T shirt) theres a hell of a lot of voltage in them. Have a good look round, are the cables secured right and fully home at both ends? Wherever it is it will be the one nearest the petcock.
July 13, 200915 yr Moderator I took the cap off my sparkie to run on 1 cylinder ( for testing) and the bugger zapped me. Me being the easiest way to earth check the caps are screwed on tight and in the HT lead centre. I can touch my leads with the plugs attached and not get a belt.
July 14, 200915 yr Author Thanks, I'll recheck all of the wires. It is only intermiten, as I have only been shocked once, and was holding onto the HT wires with out a problem. Must be a fault somewhere. I think this may be related to the problem I was having before, when sometimes I would here a puff sound, when I turned on the ignition, I think the coil was discharging or send a high voltage to the spark plug.
July 14, 200915 yr Moderator Thanks, sometimes I would here a puff sound, when I turned on the ignition that'll be foamy in the background
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