I have a 2003 RX DI with 130 hours on it and a brand new HFP-500DI-X fuel pump I just installed due to a suspected bad OEM unit which would only prime to 17psi when installing the lanyard. The ski now primes to 27psi when the lanyard is installed and will reach 100psi when cranking it to start the ski. The ski will fire, but then lose fuel pressure and it cuts off. Here is the video I posted on YouTube of the situation: