Re: Mercury promax found in storage
with a motor that old(its not that old but it is 16 years old) that hasent been started you are going to have to replace the impeller and the carbs are going to have to be rebuilt if they had any gas when stored. i would start by removing the sparkplugs and spraying some wd40 to lube the cylinders and either turn the flywheel by hand and feal for cylinder stuckage with the plugs out. if he wont start it or even crank it to do a compression check you have to ask yourself if you know him and how mutch you are willing to spend if it doesnt run. rusted cylinders usually arent a big problem so i wouldnt worrie too mutch. if it were me i would take at least a few hundred off the price if he wont run it or even crank it. good luck