Re: mar. 60hp
A couple things I would check.<br />1) Compression test on motor - verify all cyls within 10% of each other and readings over 100PSI<br />2) Inspect lower unit oil for metal chips and/or water.<br />3) Does motor still have oil injection system hooked up ?<br />4) At the very least, run the motor on muffs or in a barrel. Let it get up to operating temp and see how it runs. Check for good water flow from the telltale. Ideally take the whole rig for a test run before handing over the cash.<br />5) Does it have power tilt/trim ? Check the operation.<br />6) Do a flex test on the transom. Tilt the motor up and apply force (100Ib+) to the motor lower unit. The transom should not flex at all.<br />7) Measure the voltage at the battery while the motor is running. You should see between 13.5 and 15 volts DC. If not, something is wrong with the charging/regulating system.<br />8) Pull all spark plugs and inspect. They all should look the same. Be suspicious if one is different.<br />9) CHeck for smooth gear change F-N-R while running.<br />Just a few thing to consider. Good luck.
