Need help with a 1989 Evinrude 90hp, has vro removed. When on the water the engine bogs down and then dies on throttle. If I throttle back, it will idle fine and troll fine. When out of the water hooked to the hose it runs fine no bogging down and it doesnít die.
I have removed the gas and put some new gas in 50:1 mixture and it didnít make a difference. I changed the spark plugs (they were a little wet), rebuilt the carbs (they looked fine though), check the compression (it was good at 120-123), spark tested fine.
After completing the above, the boat still runs the same way. It bogs down and dies on throttle up. Primer bulb does feel firm, and it doesnít make a difference if its pumped when the boat is bogged down, it still dies.