well i had my boat out on the water everything was going great, was going like 55 and it was just crusin, sounded really good too. then after 10 or 15 minutes it seems like my driver side engine was getting week. it felt like something was holding back the propeller, now my jet ski made the same noise when i had like sea weed stuck under my jet ski and i would have to pull it out of the whole under the jet ski. any ideas? seem like a carb problem? a fuel problem?