james_risch
New member
"Hi, my yamaha F225 has a prob
"Hi, my yamaha F225 has a problem with dropping off the plane under full throttle/load. It only seems to happen when I open it up to full throttle the first time (after it has warmed up) and as the boat picks up there is a sudden loss of acceleration and I can watch the RPM drop from around 5200rpm to around 2800rpm even though still full throttle, if I back off to idle apply full throttle again it will do the same thing. If I accelerate slowly it is fine, and after this it doesnt play up for the rest of the day, no matter how hard I accelerate. The fuel filters have all been replaced and I have had the fuel pressure checked in a tank with good results and it did not play up without the load of the boat in the tank. Does anybody know of anything that could cause this problem?"
"Hi, my yamaha F225 has a problem with dropping off the plane under full throttle/load. It only seems to happen when I open it up to full throttle the first time (after it has warmed up) and as the boat picks up there is a sudden loss of acceleration and I can watch the RPM drop from around 5200rpm to around 2800rpm even though still full throttle, if I back off to idle apply full throttle again it will do the same thing. If I accelerate slowly it is fine, and after this it doesnt play up for the rest of the day, no matter how hard I accelerate. The fuel filters have all been replaced and I have had the fuel pressure checked in a tank with good results and it did not play up without the load of the boat in the tank. Does anybody know of anything that could cause this problem?"