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timguy

timguy

Silver Medal Contributor 69 From Duluth Mn
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    • timguy
      timguy replied to the thread Very weak spark 8 HP Yamaha.
      Yes but how many pulses can reliably come out of a single capacitor per second which has to produce 60 to 130 volts....granted @...
    • timguy
      timguy replied to the thread Very weak spark 8 HP Yamaha.
      It does fire off the orange wire with the black wire ungrounded but it won't fire off the black wire with the orange wire ungrounded...
    • timguy
      timguy replied to the thread Very weak spark 8 HP Yamaha.
      When I put a regular Yamaha coil to the orange wire coming off the capacitor module I'm getting a tremendous spark. And nothing off the...
    • timguy
      timguy replied to the thread Very weak spark 8 HP Yamaha.
      Maybe that capacitor IS Tired! 😴
    • timguy
      timguy replied to the thread Very weak spark 8 HP Yamaha.
      Yup, holy cr@p that's 183 times a second at 5500 rpm. That's a he!! Of a task for that capacitor, brother
    • timguy
      timguy replied to the thread Very weak spark 8 HP Yamaha.
      Okay so the cylinders fire at the bottom of the stroke as well.
    • timguy
      timguy replied to the thread Very weak spark 8 HP Yamaha.
      Yes I don't use the Yamaha manual for diagnostics It's probably available online too, perhaps I should. But the CDI testing procedure is...
    • timguy
      timguy replied to the thread Very weak spark 8 HP Yamaha.
      Thanks Bosco. Have you had any history of problems with this coil in a low low hours motor? The testing procedure (specs by CDI...
    • timguy
      timguy replied to the thread Very weak spark 8 HP Yamaha.
      Right, certainly. The DVA meter as well as ohms seems to show a properly functioning charge/Exciter coil, however. The capacitor module...
    • timguy
      timguy replied to the thread Very weak spark 8 HP Yamaha.
      Thanks. Tests completed. All within parameters while hand cranking, it's not electric start. Here is results.
      • Screenshot_20250521_170836_Photo Editor.jpg
      • Screenshot_20250522_090220_Chrome.jpg
    • timguy
      timguy replied to the thread Very weak spark 8 HP Yamaha.
      Hello where are those Yamaha experts when you need them?
    • timguy
      timguy replied to the thread Very weak spark 8 HP Yamaha.
      Sorry I had a stop by 15 horsepower Evinrude repair. Okay here's what we have. What do you think of that? Not enough resistance...
      • Screenshot_20250521_170836_Photo Editor.jpg
    • timguy
      timguy replied to the thread Very weak spark 8 HP Yamaha.
      Okay, sounds good. Thanks. I'll go check after lunch here
    • timguy
      timguy replied to the thread Does anyone have the 3 wire plug from the tach to the control box?.
      Try Tim's Outboard. 218 682 2331. Have model # handy and some specifics. You can send them a picture too. I have them for hard to find...
    • timguy
      timguy replied to the thread Very weak spark 8 HP Yamaha.
      Thanks, Racer. This is in like new condition, I guess 30 years took some toll on the electronics? Any ideas on repair?
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