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2007 Yamaha FX
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Discussion Starter #1
Troubleshooting a newly acquired 2007 FX.

Attach Yamaha brand key to button.
No lights or display.
Start button does nothing, no turn over, no clicks, no beeps, dead silence.

Here are the steps I have gone through:
Tested battery in place with volt meter DC 12.4 volts
Pulled battery and put on battery tester. Shows full health and full charge.
Bench tested battery on volt meter DC 13.1 volts.
Reinstalled battery with fresh connection maintenance and corrosion caps.
Replaced 20 amp fuse
Replaced both 3 amp fuses.

When I pull the 20 amp fuse and then replace it the green security light comes on for 20-25 seconds.
While green when I attach Yamaha brand key and press start while green light is on, nothing happens. Same symptom.

When I pull the 20 amp fuse and replace it the green security light comes on for 20-25 seconds.
I pull up the start button by hand as far as possible and press start while green light is on, nothing happens, same symptoms.

When I pull the 20 amp fuse and replace it the green security light comes on for 20-25 seconds. I press and hold the Mode button to try to get an ECM code but nothing comes up on display at all. No lights or indicators.

Any ideas on what I can test next? I have standard tools and volt meter but I cannot find any resources on the start up sequence.
Perhaps the start switch is defective or poor connection/short?

Thanks to all!
 
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