My VZ150TLRZ loses power when making a left turn. The loss of power does not matter at what RPM the engine is running. However, as soon as I turn the wheel back to center or to the right, the engine continues running. The engine is easy to start and runs great until I turn the steering wheel to the left. I have replaced the fuel hoses with regular 5/16" gas fuel lines from the tank to the filter. That did not make a difference. I did not replace the hand ball pump. I have taken the lines and wiring out of the rubber boot that goes through the engine and checked for leaks or frayed wiring. I have traced the hoses and wiring inside the boat for possible shorts but was unable to find any problems. When I run the engine with a water bra, the engine runs fine. I can turn the engine in any direction and there is not a problem. I am stumped.