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? asked in Cars & TransportationBoats & Boating · 6 years ago

2008 Vx1100 Yamaha wave runner engine question?

2008 Vx1100 Yamaha wave runner. I bought this engine used to use in making a jet-jon boat. Engine installed and when I cranked it up, with a garden hose attached to it for cooling, a large stream of water is coming from the vent tube in the valve cover. Compression is normal. No water in the oil that I can tell. It was running on all 4 cylinders with a huge stream of water coming from the vent pipe. I don't think water is supposed to be coming from this pipe. What is the likely problem?

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