1997 yamaha waverunner 3

My 97 gp760 did this. I checked almost everything. Replace or clean your plugs, then run carb cleaner through your fuel filter both ways, and then spray carb cleaner into the fuel line from the fuel filter to the carbs. Run 10 minutes, more carb cleaner into the fuel line, and run it 15 more minutes. Then zip tie fuel lines at the fuel filter. I figure there was trash or buildup in the carb. Its easier than rebuilding the carb. Try it. Daniel at the MEXPIPE Pto Escondido Oaxaca.