Hello, I have the following problem with my Kawasaki Zephyr 550. I opened the machine a few weeks ago from 27 to 50 hp. During this time with 27 hp the problem occurred the first time, at some time on the highway, therefore hearing speeds the machine went out and I had considerable problems getting it back on. It had no fuel in its inflow. Now with 50 hp it no longer goes out, but after some time with a speed of 140km/h and higher the power decreases and I can no longer reach more than 100km/h. I then drive to a side strip/park and wait for a moment, then it runs normal for some time. It almost seems to me as if the speed limiter turns on in the car, which however cannot be due to the speeds of the Kawa, but the stalling is the same. I found that the tank is rusted from the inside, but this problem was fixed, at least once. In addition, I have renewed the fuel filter, where I found rust sets in it. Can it lie somewhere on the carburetor or does anyone else know a good tip??? But please don’t “ask the dealer”, I have already come up with this idea, only that didn’t help me any further and a reperture would be between €150 and €1000, depending on what to do. I would be very grateful if someone had a solution ready, greeting Oliver