I just bought a small pontoon boat with a Honda BF25D on it. At full throttle the tachometer reads 1600 RPM. I thought that perhaps the motor was undersized for the boat, but knowing the original owner bought it for a small lake it did not surprise me. I found (online at Honda's site) the manual for the motor and it is clearly rated to run at 5000-6000 RPMs and so I am wondering what might be restricting or governing it. It starts as soon as the key is turned and purrs like a kitten and has no problem accelerating as far as it will go. There is no sputtering or "fighting" me to get to what it thinks is full speed.
But that speed is a paltry 1600, so either my tachometer is faulty or this thing just isn't going like it should be. The screen in the gas tank is clean. I have not checked or replaced the fuel filter yet. I do not have another BF25D anywhere to compare it to.
What else can I check for?
But that speed is a paltry 1600, so either my tachometer is faulty or this thing just isn't going like it should be. The screen in the gas tank is clean. I have not checked or replaced the fuel filter yet. I do not have another BF25D anywhere to compare it to.
What else can I check for?