Had engine replaced and carbs redone with a new. Starter. And 3 new fuel lines and battery. Here is issue the guy thst put motor in took it out for 10 min he told me. I took them out around dock at just idle or above and ran ok. The next time I went out I took it to full throttle and it died a few times. He is telling me bad fuel I looked at online filter and it is clean also the water separator had a little dirt in it and I drained fuel it smelled fine with hardly any thing in it. He did compression test and it showed 40 on rear and 120 on front. Less then 30 min on motor. He is blaming me for it