u/WonderboyZ7

So I bought a used boat from a shady kid and of course it has issues. The motor will start and idle well but once I’m in the water and try to get it past 2000RPM, it’s struggles and drops to idle (sometimes shutting off completely). If I play with the choke while accelerating, I can sometimes get it up near 3000RPM. The kid told me that the oils tank was leaking so they capped it and are premixing oil and fuel in the gas tank.

I’ve done some research and tried a few things. I rebuilt the carbs and made sure the gas tank was able to pull in air as fuel is used.

I looked at schematics and noticed that the air intake silencer is completely missing but I doubt that could cause this. Any and all suggestions are welcome!