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| andy63 Member Since: 30 Jun 2023 Location: north east Posts: 770  
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I have a little honda genny.. it's been running poorly for a bit now so I spent some time cleaning up the fuel system and checking the valve clearances etc..
When i went to try it there was no spark and after looking for a fault for about two hours i relented and went on the tube.. First video of a bloke checking a no start he mentions an oil sensor check... 🫣... and I'd drained the oil😫 So i got there in the end..👍🤣 As these petrol things are a bit of a mystery, I thought id stick the scope on the secondary ignition side and view the spark plug trace.. Not sure what it means till I've done a bit reading🤔  Click image to enlarge Click image to enlarge Click image to enlarge Click image to enlarge Click image to enlarge |
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7th Jun 2025 5:54pm |
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| andy63 Member Since: 30 Jun 2023 Location: north east Posts: 770
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Further play with a couple more probes..
A current clamp on the primary ignition (green trace ), and a capacitive pick up probe on the plug lead (red trace) The blue is a calibrated capacative pick scaled in kv.. As far as I can make out from the bit reading I've done they are pretty well text book and good examples.. Remembering its a magneto ignition system..no battery supply.. Click image to enlarge |
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8th Jun 2025 1:11pm |
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| andy63 Member Since: 30 Jun 2023 Location: north east Posts: 770
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Might as well post a couple pictures using a fairly new toy, a little borescope👍😁
A couple pictures.. the internal bore and piston top..and the two valves in the head.. Click image to enlarge Click image to enlarge |
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8th Jun 2025 1:19pm |
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