I just purchased a 20ft aluminum flat with this Suzuki 150 v6 (1989). The guy that I got it from had let it sit up for five years and the carbs were filled with gunk. I got them cleaned, and it started right up. So the next day I take it out and it was only running at 3,000 rpms full throttle. So I turn around heading back to the launch and it just kicked in. I was then running about 4500 rpms. So I picked up the boat got home and called the local suzuki dealer and he tells me that it should be running 5500 rpms and to drain the carbs and see what comes out. I did. Nothing! Crystal clear! I take it out the following day and It just takes off and is running at running at 5,000 rpms. So the next day I take it out and my luck it wont start. I finally get it to start and it runs perfect. I tell the dealer this and he tells me "next time it wont start, choke the engine manually by turning the screw up top. Sure enough I did and it fired right up. My question is, Could it be that the electronic choke is getting stuck? Because its definetely not choking when I push the key in. Is this a hard fix ( common)? What should I do to fix this promblem? where to check first? I know this is a long topic but this is whats been going on this past week. Just trying to get everything right.