Propeller help

[Rionramkalawan]

Hey I have a 2019 2520XL with transom bracket and a single yamaha 300.
What propeller size and pitch should I put on it. When I bought the boat it had a Yamaha Sws II 15 1/2 x 17T that looks like it was a refurbished prop. Im not teally getting the rpm range it should be hitting. Anyone know what props this boat would be sold with from factory?

 

[warthog5]

You have to do better than that. What IS your Max RPM? Post good pixs of where the engine is bolted.....Which hole? A pix like this.