Re: New boat owner. Yamaha 89-90 85 hp 2stk
Hi,<br /><br />The 85 hp is a "economy"-version. It has no oil injection and a little bit less electronic.<br /><br />So you have to mix the fuel, 1% tcw-3 oil.<br />You have a manual choke that you have to activate until it fires for the first time, then you can release it.<br /><br />Make sure is clean under the hood and change the pluggs (NGK BR8HS-10, .9 - 1 mm gap).<br />Also change the oil in the lower gear. Look at the old oil, is milky? (Then you might want to service it, it leaks water)<br />Do you have a lot of metal scrap on the lower oil plug (has a magnet on it to capture debris). If there is a lot of debris you migh again want to service the gear.)<br /><br />If the condition is unknown you better replace the impeller for cooling water, you don't want it to fail when you are out on the see.<br /><br />Check the hydraulic trim, does the engin stay up or does it slowly (a week) lower it self. Add hydraulic oil. Also look for rust on the trim pump cover.<br /><br />Of course you have to get a service manual, like the one for Clymer, it will not always refer to your 85 hp since it not so common. but it is a 3 cylinder but I'm not sure if it closer to the 80 or 90 hp.<br /><br />Myself I have 90 hp (-00) and my father inlaw have a 85 hp (-94).<br /><br />Hope this gets you started.