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    Re: How do you test the CDI box?

    Re: How do you test the CDI box? The reason I think it is electical is when it dropped to 2000 rpm's the other day i just bumped the tilt switch and it took off like a bat out of hell and ran fine the rest of the day. It is hard to troubleshoot because it doesn't do it long enough to really...
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    How do you test the CDI box?

    I am having an intermittent problem with my C85 Yamaha outboard ignition system and I think it could be in the CDI box or one of the wires going to it. It will suddenly drop to 2000 rpm's and will stay there even with throttle wide open. I can switch it off and start it back up and it will run...
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    Question for Rodbolt

    In reply to your ealier post.I shorted the overtemp sensor wires and the alarm horn works. Also the volt meter never changes before or after it starts to drop RPM's. All wire connectors in the motor compartment look shiny and new. It acts like it is going into a rev-limiting state but all wiring...
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    Calling all Yamama Guru's

    I have a 1994 Yamaha 85 HP outboard. It runs great until the motor gets warmed up (usually about 20 or 30 minutes)and then it drops to 2000 rpm's even at WOT. I first noticed this problem when I hit a wave hard one day and it dropped to 2000 rpm. I switched it off and started it back up and it...
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