Re: Evinrude 8hp ID and Other Help Please
Vlads,<br />As WillyB mentioned , never run your motor out of water. You can run them in a deep barrel with the lower and midsection submurged. The water pump has to be under the waterline for them to pump water up to the powerhead to cool the motor. If you run them dry, the pump impeller (part that moves the water) can be destroyed. It's best to replace the pump impeller, it's easy to do with the manual, and should take about an hour. Worst case is running a dry motor. Heat will build quickly causing a lot of damage to the pistons, rings, cylinder walls etc. If this motor is new to you, it's best to replace the water pump impeller and know for sure that it won't fail when you need it the most. It's part of normal maintanence to replace the pump every 2-3 years even tho the motor goes unused. The impeller "arms' can take a set from sitting and not pump as effeciently as a new one. The impeller rubber can dry out and crack. If parts of the impeller break off and are pushed up into the cooling passages of the powerhead, they can block the flow of cooling water and overheat the motor. The water pump impeller is turning whenever the motor is running . It is being by the driveshaft. The water pump is located just above the junction between the lower unit and mid-section seam. <br /><br />Two stroke motors are lubricated by mixing oil in the gas. The mix ratio for your motor is 50:1. That's 50 parts gas to one part oil.<br />Typically you'd add 16 oz.of TCW-3 rated oil to 6 gallons of 87 octane gas. You don't want higher octane gas. This fuel/oil mix is all thats required for internal lubrication.<br /><br />A gas additive is stabilizer. Sta-bil
Link helps maintain the quality of fuel if stored for long periods of time. If you don't plan on storing your motor for long periods of time, you can omit the fuel stabilizer.<br /><br /><br />From a maintanence standpoint, you'd be smart to find a service manual for your motor. All aspects of maintaining the motor are clearly explained. The manual will show you the steps to replace the water pump also. I personally prefer the OMC original service manuals, they have more information. Since many OMC manuals are out of print, private sellers on Ebay are a main source for the factory manuals. The alternative is to find a 3rd party service manual by Solec etc. <br /><br />c/p:<br /><br />If you want to do the job right, nothing can substitute for the service manual. By your having the manual, questions can be answered before you even think to ask them It's a simple fact. But of course, the manual doesn't always tell the whole story. Service manuals are often geared to a level above the average do-it-yourself mechanic, and familiarity with outboards in general will help in interpreting details of the manual. Major outboard models are covered in repair manuals from Clymers, Seloc, Intertec, and others, generally available from your local outboard dealer. The dealer can also sell you or tell you where to get a genuine repair manual from the manufacturer. Such a manual might be slightly more expensive, but it will generally be more complete than the "one size fits all" aftermarket manual, since it is geared towards the dealer's service department and not the do-it-yourselfer. Mercury sells one manual that covers all its motors 1965 and older, and other manuals for newer models. OMC has outsourced printing of all publications covering motors 1979 and older to Ken Cook Co. Since the repair manuals are often general in nature, we also recommend that you get a parts manual for your exact model, so that you can know for sure if you've got everything there."
<br /><br />1993.<br /><br />The throttle won't return to idle by itself. Boat motors have always been that way for some reason. There's a light spring to bring the butterfly closed, but you can't feel it. Generally they're as bullet-proof a motor as you can get. Never run it out of the water, always remember to add oil to the gas. Since you won't use-up the gas too often, always use stabilizer too. Most any part you'd need is still available.