I have a guy coming to buy my boat at 6! I just had it running and now it won't run anymore. It was running at high revs but as soon as I dropped it down to neutral and went to put it in gear it stalled out and now it won't stay running at all. It starts for a second and dies every time. It'll stay running(barely) if I keep pushing in the choke when it starts to die. I know nothing about boats other than this one has been trouble since I got it. I've never had it on the lake because it's always had something wrong with it! Any ideas what's wrong this time!?