azhuntnut Report post Posted June 2, 2008 I am going to pick up a small boat this week that has a 35hp and 7.5hp gas motor on it. The owner tells me they haven't been used in a couple years. I would like to tune up the motors before I try to start them. What are some of the things I should do? Should I remove the carbs and clean them out? Give me the low down on how to make these babys top notch. David Share this post Link to post Share on other sites
Rembrant Report post Posted June 3, 2008 Take them to a boat motor mechanic and have him go over them. You can probably do some good yourself except that the plastic impellers (a boat motor's water pump) needs to be replaced. And there are gaskets and O-rings that may need replacing that a good mechanic will go straight to that you won't know about. Mike Share this post Link to post Share on other sites
azhuntnut Report post Posted June 3, 2008 I am very mechanically inclined, so I would like to give a go at this project. I plan on checking, and most likely changing out the impellers on both. The gear oil will have to be changed, along with the greasing all of the zerk fittings. New fuel lines and spark plugs also. Is there anything I am forgeting? David Share this post Link to post Share on other sites
