I just bought a boat with two Yamahas on it and would like to get them checked out before I try to go out. These are four stroke 2002 225's with 1400 hours so I'm aware of the possible corrosion issues. I want to upgrade to the new exhaust if it hasn't been replaced already. This boat has never been in salt water and spent it's entire life on Lake Michigan. I planned on just replacing the motors but they are so clean I think they are worth taking a chance on. I'm in the Tacoma area but can take it wherever a good/honest mechanic is. I know everyone is probably pretty busy this time of year but I'm not in a big hurry.