I was talking with a guy on another boat tech forum and he said sometimes with people have a varnished carb causing problems they use a 10x dose of something like a Chevron with Techron fuel system cleaner. He said it takes a long time and I may have to run through a few tanks of gas over days/weeks to get it all better, but he said it has worked. He also said that sometimes it doesn't work but it can't hurt your engine. I'm just flat broke and don't have the money to take it in for a carb cleaning. Has anyone ever heard of doing this? Is it safe for my motor? 9.8 4stroke tohatsu?