115 BETO Stalls hard acclaration

My 115 1988 BETO V4 2stroke stalls under hard acceleration.

When you are just slowly idling forward then accelerate hard the engine will stall
Or When you are just idling forward with a wakeboarder you cant get them out of the water no matter how slow you try to get them up it will stall before you clear 5knots.

But if you don't have a wakeboarder you can cruse unto speed no worries and the boat performs fine even with a very full boat.

I have just had the carbs striped and cleaned out new fuel filter & spark plugs & the fuel pump rebuilt.

Could this still be carb related?

Cheers

More history is needed on your rig. Is this engine new to you? First time out? Is this a new issue? Was fuel tank cleaned, New fuel mixed with old? Are you using proper mix of oil and gas? Were the carbs. linked and synced? Was she sitting for a length of time?

Sorry I have owned the boat for two years now it has never had any issues.
It hasn't been used for 3months then I got the carbs cleaned, fuel tank is clean with new fuel in it and the motor is oil injection.

Try pumping primer bulb while accelerating, If condition improves you have a fuel restriction or a fuel pump issue