testing or replacing the MAP sensor is a good first step
Brand Part Number Johnson / Evinrude (OEM) 583773
0L 300 2-Stroke 0G610221 thru 0T105297 14360A78 EFI
0L 4-Cylinder & Various V6/V8 Models
Brand Part Number Superseded By Mercury 17-99353 8M0073409 Mercury 8M0073409 North Boatparts 8M0073409 Candy Marine 8M0073409 SerdaMarine 8M0073409
6BG-13915-00 Fuel Pump Filter for Yamaha F30B F30 F40F F40 | JLM Marine family-yamaha-f115txr testing or replacing the MAPFuel Pump Filter Fits Yamaha F30B, F30, F40F, F40 (20092017) This strainer fuel pump filter is engineered as a direct replacement for Yamaha 4 stroke outboard engines rated 3040 HP. Designed to maintain fuel system integrity, it fits the F30B, F30, F40F, and F40 models produced from 2009 through 2017, ensuring reliable fuel delivery and engine performance. This filter directly replaces OEM part numbers 6BG 13915 00 and 6BG 13915 01, providing seamless