Just purchased this pontoon with a E25ELCEB, seller stated his wife turned off the hose on him and was afraid the impeller was bad. I replaced the impeller and wtr pump and started it up with the aid of starting fluid, ran fair until it warmed up and was backfiring under starter. I pulled starter to side and noticed a fuel line was off at the bottom of intake. Reattatched started fine once again until warmed up then the backfire started again same area but no fuel spraying out now. Pulled my plugs, top one wet, bottom one dry but lot of carbon. Any ideas!
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