Re: 86 Evinrude 15hp can I run 100/1???
Warren.... DO NOT run that engine (or any other OMC outboard) with a 100/1 mixture. It simply doesn't work out!<br /><br />Disconnect the fuel hose from the engine, then pump the fuel primer bulb. It should get hard within a few squeezes. You may need to pust in the ball of the connector (engine end) to bleed any air out first. That will prove the fuel tank and primer bulb are okay.<br /><br />If the above checks out okay and you still can pump the bulb for five minutes, you have either a flooding carburetor, faulty fuel pump diaphram, or a broken fuel hose somewhere on the engine. At any rate, in that length of time you should be able to see and smell gas where it shouldn't be.<br /><br />Your spark plugs should be Champion plugs with the gap set to .040 . Make sure you have compression and the proper strong spark.<br /><br />The slow speed carburetor adjustment procedure follows.<br /><br />(Carburetor Adjustment - Single S/S Adjustable Needle Valve)<br />(J. Reeves)<br /><br />Initial setting is: Slow speed = seat gently, then open 1-1/2 turns.<br /><br />Start engine and set the rpms to where it just stays running. In segments of 1/8 turns, start to turn the S/S needle valve in. Wait a few seconds for the engine to respond. As you turn the valve in, the rpms will increase. Lower the rpms again to where the engine will just stay running.<br /> <br />Eventually you'll hit the point where the engine wants to die out or it will spit back (sounds like a mild backfire). At that point, back out the valve 1/4 turn. Within that 1/4 turn, you'll find the smoothest slow speed setting. <br /><br />When you have finished the above adjustment, you will have no reason to move them again unless the carburetor fouls/gums up from sitting, in which case you would be required to remove, clean, and rebuild the carburetor anyway.<br /><br />Mike..... Didn't mean to clash with you. Typing at the same time.
