Seadoo Spark Hesitation


Hello! Purchased a 2019 Seadoo trixx. Lots of fun but after running wot for a bit, it tends to lose appx 1000 rpm, then goes right back. Sometimes the spark will beep when this happens but doesn’t throw any codes. The person before put a wet jet free flow exhaust on with ribbon delete. Replaced the spark plugs (took forever), and put sea foam it it. Still same issue. Could it be the exhaust hose is too kinked? I can upload photo once I take deck off again. Not sure if anyone else has had this problem.