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Check your wiring, it is most likely a loose wire. Check your power, ground, and remote wire are still tight going into the amp.
Here is a long shot.....When you accelerate, keep an eye on your voltage gauage. See if your volts are dropping off. I had this happen a couple years back where my voltage would drop, and my amp would cut out only on acceleration. Turned out I had a magnet come loose in my stator that was causing grief. We had recently had the whole primary off doing repairs, and suspect the magnet in the stator had gotten dislodged while putting everything back together. I doubt that is your issue, but I thought I would mention it. If you see any issues with the volt gauge, you will want to test your stator and regulator.
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