Re: yamaha 90hp ~1988 3 cyl
mine is also none oil injection, i would appreciate any tips on this engine, as this is all new to me, i have allways hired boats for holidays, but this is my first as an owner, i have no manuals at all with the boat or engine which makes it hard to find out whats what! <br />The local marine shop is not geared up for boat owners as yet, they run the stock down during winter, but they advised that i should run at 10 gal/1 ltr oil mix as it has not been run for a year, i just have this sticking float on the third carb at the moment, which may resolve itself after a couple of runs, the engine could do with a good clean as the preventative corrosion spray has attractted all the dirt and dust,i was going to blast the carbs with a cleaner as a preventative measure, and the electric conections with a contact cleaner, i run it for 20 mins last weekend and the rev counter started bouncing all over the place( i did not think that it worked!)held at the revs for a couple of minutes and went off again.<br />i feel that a good clean up of engine and contacts may be prudent before we take her to sea, where can i check the gear oil in the leg? where is the drain screw located and the fill point?<br />any advice is appreciated.<br />i also notice that the battery leads are black inside instead of copper colored which suggests water corrosion, so i am trying to restore them in the near future, i also notice that the starter jams fron time to time, possibly due to a poor battery, if you leave it 5 minutes it starts o.k. which would indicate poor power output from the battery (supplied with boat,new last year,before standing unrun for a year at the boatyard!) alternative battery available with 80 amp power.
