Starts on scissor stand not in water

Location
TN
Yamaha 2021 just out riva freeflow pipe on it. Starts out of water but when I put it in it cranks but doesn’t want to turn over. I didn’t do the tune yet idk if that has something to do with it or not. Going to put the stock pipe back on and see if that was the issue. But I didn’t get it started on the stand and pulled it off and it seems like the idle was really high. If anyone has any answer please let me know. Thanks
 
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