www.mudmotortalk.com
them guys have all the knowledge about these things.
but for starters, move gas tank all the way to the front and battery too.
for any surface drive on short transom boats unless you have like a pod or hunt deck. Tall transom boats won't have this problem.
He must learn to ease up slowly when coming to a stop. If he is running WOT and lets off the gas immediately, he will always have water gushing over. It's a learning curve. I had a 27hp Pro Drive surface drive on a 1648 Alweld and had the same problem regardless of how much weight I moved up front.
Practice will make perfect!!!!
He can ask for more advice here too:
http://www.mudbuddy.com/forum/
JUST AS THE BOAT STARTS TO SQUAT AS A RESULT OF LETTING OFF ON THE THROTTLE ONE SHOULD EVER SO SLIGHTLY EXCELERATE (JUST A LITTLE). IT TAKES PRACTICE TO DO IT CORRECTLY, BUT IF YOU DO IT RIGHT, THE BOAT WILL OUTRUN WHAT I CALL AS A BACKWAVE, WHICH IS THE WATER SURFACE RUSHING TO THE BACK OF THE BOAT WHEN YOU COME OFF OF THE PLAIN. AT THE VERY LEAST THE TECHIQUE WHEN DONE PROPERLY WILL REDUCE THE AMOUNT OF SPILLAGE INTO THE BOAT.
RECOMMEND YOU MOVE THE BATTERY & GASTANK FORWARD.
Thanks guys i appreciate all the responses i figured we would move the gas and battery to the front. i know the motor is not to much for the boat. the boat is well made made with a thick aluminum. would is be possible to weld floatation pods to the boat? If so could someone post pictures of what they look like.....if its what i am thinking of they may help to get the dog in and out the boat lol.
Im not sure Pods are the best idea for a surface drive, I know beaver tail does it, but Ive read where it can become a pain in the shallows. Also I would think pushing a boat around (by hand) when trying to hide it, turn it, etc. would be really hard with pods in mud. Just because its alot of edges to dig into the mud. I would think if you where gunna spend the money, try and do something like a hunt deck, but to get that welded is gunna probably cost more than the boat itself so you might wanna think about that.
Do like everyone said and move your stuff to the front and ease off the gas when slowing down. And people saying you have to much motor aren't saying the boat cant handle the HP, but instead that the motor is to heavy for the LENGTH and WIDTH of the boat. But be careful because your situation just sounds like an accident waiting to happen.
That is a common problem with small/low transom boats and heavy motors. He can start by possibly moving as much cargo including passengers to the front. Gas tank and all gear as much as possible up front.
If the problem continues he can possibly have a welder put a cap rail on the back of the transom to keep water from rolling over, or build the transom higher. He needs to be careful. If you plan on crossing some choppy open water you could become swamped.
If none of this fixes the problem he may simply have boat and motor mismatched.