I read a couple of thread on this subject using the search tool. Doesn't look like there's enough info. Can some of you lists items to look for during the test ride. I'm going to check and make sure all switches, hatches, etc. work as intended. Make sure boat starts/shut off. Have the boat run a WOT for atleast 2 minutes straight and see if anything comes up. Check the bilge area before and after test for water. Other than that I'm stumped. This is for a 2005 21' Larson 5.0GXI w/ 55hrs. I'm already planning to get a marine mechanic to inspect the motor/outdrive and do compression test. Any thing in particular I should ask the shop to look for or question that would assist in which is the better shop to take it to. This is out of my area so I will be cold calling the local marina/boat motor repair shop. I just don't want to say "check the engine/outdrive", don't know if that's too generalizing it?