Re: 84 Johnston 90hp VRO gaskets
Hi jarob....<br /><br />If unsure as to the condition of the engine, I'm assuming from your post that it is new to you, take it to a dealership for a through check up.<br /><br />If you want to do it yourself, a service manual for that engine is the only way to go.<br /><br />Tune up would include:<br />Compression test.<br />Ignition test with new spark plugs.<br />Fuel system which could include a carb rebuild if needed...depends on how the motor is running, checking fuel lines are tight and replacing filters.<br />Lower Unit test for leaky seals and replacement of gear lube with new drain and vent plug gaskets.<br />Alarm tests of the VOR alarm system.<br />Engine lube.<br />Run up test for idle/WOT timing and to check engine temp. Decarb is always a good idea also.<br />A lot of folks also have their water pump impeller changed out every other year or so also.<br /><br />This may seem a lot but once done a few times, and with a OEM service manual to guide you, it could be done in a couple hours at the beginning of the season. Not sure though which gaskets you are talking about. And again, It can't be stressed enough how valuable a service manual would be. Hoped we have helped some. Thanks!!
