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2004 Sportster 4tec cutting out randomly

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  • 2004 Sportster 4tec cutting out randomly

    Have a 2004 new to me sportster with the 155hp 4tec engine. It was working fine most of the day but this was my first time out in it and seems like the rpm surges when you aren't even touching the throttle lever. I made a video on it and you can see and hear the engine cut out and catch itself and then also cuts off completely and you are able to restart it like nothing happened.

    Anyone have any idea what it could be? I'm about to replace the fuel filters in tank and double check the fuel injectors but so far no codes or check engine lights. Also have new spark plugs ordered and on the way.

    The part where it starts cutting out is between 5min and 7min mark on the video