have a new 40hp outboard on a zodiac. idles and runs just fine until i get to 25oorpm. then it bogs down like its starving for fuel. timing is ok, fuel is ok, but i dont know what could be wrong. any help would be appreciated.
Howdy, Cook.<br /><br />What happens if you squeeze your primer bulb when the engine tries to bog?<br /><br />Sounds like you have a fuel starvation problem. If the primer gets it to run check your fuel tank vent and pickup, check for air leaks in the lines, check the fuel pump for a strong output.<br /><br />Last resort: might be a carburetor problem in the high speed jets. Try squirting a bit of fuel mix into the carb(s) when trying to run under load. If that brings her on overhaul your carb(s).<br /><br />Let us know what you find.
when you keep pumping the primer bulb, the same thing happens. i tried squirting a little ether when it bogs down and the motor picks up rpm- JB,-EVEN TRIED ANOTHER TANK AND FUEL LINE WITH THE SAME RESULTS.
