I have 2 questions. Like that's a shock, me with questions. I have a Mercury Outboard 90 Hp and I cant find any information on it. What year, parts info, stuff like that. I have found some sites that charge you $$$$ for info. I am on a very low budget for this project so any free info I can find the better. My second question is how do I know if the motor is charging the battery's. I have 2 Sears marine battery's and they just don't charge. They work OK at the first of the day after being on the charger all night but as the day goes on they die. Can anybody help me with these questions before I come up with more?