Howdy, This little engine, (25hp) has been pushing my 20 foot pontoon for about two years now. It has worked hard to say the least as I fish nearly every weekend... * I want to be sure it continues to run good and gets me back and forth. * I routinely change the engine oil, lower unit oil, and plugs every 6 months or so. * Is there a check list of tasks to complete that I should be doing for this motor? ~ I read a post about decarbing the engine. Is this something I should be doing? ** Also, recently the little engine has been hard to start and will turn off if left on idle. Thanks!