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HI, you may have backfilled the cooling/exhaust system with water from the hose. Pull the spark plugs and crank the engine over. This should clear the water. If it has water in there, spray some WD40 in the cylinders , replace the plugs and try to get the engine started. Once it's running let it run for 10-15 minutes on the hose or in the water to dry it all the way out.