But I have read it does not allow for proper engine cooling, he never had a problem. While this can be alarming, it is perfectly normal for those models. Essential Boat Maintenance Tips, The Different Sections Of An Outboard & How They Work. He lives outside of Dallas, TX with his family and loves anything mechanical. Because this part is inexpensive and easy to install, its best to keep a spare handy. We want to make sure everything is running well with your outboard, which is why we provide lots of tips and tricks on our YouTube channel. If you find that the outboard motor is overheating or the impeller is living on borrowed time or there is a reduced stream of water from the cooling water outlet. Unfortunately replacing, or checking the impeller is about the only thing you can do. I'd give it a really good flush in a tub of fresh water , give it a few revs to see if anything else is loose and get rid of any vinegar in the system. If want to know the temperature of the water in the engine the best method is to use a temperature gauge. To perform a lower unit pressure test, to see if any of the seals are leaking before reassembling everything! When you say "full pressure", what is the PSI at the engines? To hide what's inside, choose Ship in Amazon packaging at checkout. Answer: The water will be warm but not super hot. Use a thin wire to clean the tell-tale nozzle. This also provides some lubrication for the first few seconds before the water gets into the pump. Again, inspect the water stream fitting. Hence, the motor is unable to pump water. We use data about you for a number of purposes explained in the links below. Separate the housing. You need to follow the safety measures while fixing the motor. Troy Mattia is a Real Estate agent by profession and an angler by passion. Exactly, youre right. Next, you can wipe the pump housing interior. If you are noticing signs of a bad outboard water pump, go through our article to troubleshoot the issues. Your problem could be due to a bad impeller. . Enter Our Dog Days of Summer BBQ Giveaway Now! However, Why would you ever trust a motor with an impeller that is over 3 to 5 years old? The Yamahas that I have ran, (60hp, 150hp, and a 200hp) all had a great stream. This page was generated at 1 minute ago. Slide off the seal, which is sitting on top of the pump housing.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'bornagainboating_com-leader-3','ezslot_20',116,'0','0'])};if(typeof __ez_fad_position!='undefined'){__ez_fad_position('div-gpt-ad-bornagainboating_com-leader-3-0')}; Use a ring wrench to unscrew the bolts holding the pump housing in place. 2000 Yamaha OX66 250HP SX250TXRY 61AX103847T, does not hurt to check on the PRVs, and water pump impellers can come apart anytime. However, this problem can be caused by a number of issues, which is why its vital to test for a bad outboard water pump. No alarms. Why Is The Yamaha Outboard Not Pumping? You may also visit the Boat Motor Manuals section of our site to obtain a service manual. Maintaining precautions saves you from any harm. We did the same thing as you with the wire but the best fix was removing the cowling, remove the hoe that goes to the pee hole, put muffs on engine, then start it up and let it run for a minute. These might help even when you have issues with your Yamaha 300 outboard. Obviously, if the engine isnt getting warm enough to maintain temperature, you want to replace the outboard thermostat immediately.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'bornagainboating_com-leader-1','ezslot_16',110,'0','0'])};if(typeof __ez_fad_position!='undefined'){__ez_fad_position('div-gpt-ad-bornagainboating_com-leader-1-0')}; If you dont, you face ruining the power head altogether. Unscrew the upper oil-level plug as well, to allow air into the gearbox. As with any service, you want to test the parts once the job is complete. By putting one's fingers into the stream and gauging the temperature of the water, an inference can be made about the engine temperature in such a motor. Have you had the thermostats out and had a look at the condition internally. [{"displayPrice":"$44.51","priceAmount":44.51,"currencySymbol":"$","integerValue":"44","decimalSeparator":".","fractionalValue":"51","symbolPosition":"left","hasSpace":false,"showFractionalPartIfEmpty":true,"offerListingId":"Ij2dnr310PfLbOO8Jf7MkvI32qhLgqOUEsjNpPFnpEfYNltmLDW2ZJMZ1Hp3oRgWdgGjJkJGQ2yHQ380x9u6FyMSoQF519zA%2F%2BdNpqwQe95ujq85OVaKWxRnUZMqe6Phr4pa4mirmvhbsOPLuV3fdETrNsGFoGOXghizboRy4eHbRFuWRfKQXw%3D%3D","locale":"en-US","buyingOptionType":"NEW"}]. Could be plugged internal cooling passages. If the "pee" stream increases to normal with the flusher it may well be the inpeller. Piece of cake! But turn off the motor immediately, just after you realize that no stream of water is coming through the motors cover. To see our price, add these items to your cart. Yamaha 61A-W0078-A3-00 Water Pump REPAir; Outboard Waverunner Sterndrive Mari Yamaha Outboard Water Pump Impeller Repair Kit 692-W0078-02-00 692W00780200, kipa Impeller Water Pump Repair Kit with Housing for Yamaha 61A-W0078-A2-00 61A-W0078-A3-00 V6 Outboards 150, 175, 200, 225, 250, 300 Hp, Fits for Sierra 18-3396, 61A-W0078-A1, Yamaha New OEM HOUSING,WATER PUMP 61A-44311-01-00, OEM Yamaha F115 (02~) Outboard Water Pump Repair Kit 68V-W0078-00-00, Water Pump Impeller Repair Kit for Yamaha F25 25hp C30 2-stroke Outboards 61N-W0078-11-00, 61N-W0078-13-00. This sits in the flat part on the shaft. At higher engine speeds there is usually a mechanism (often called a poppet valve or a bypass valve) which causes the cooling system to bypass any restrictions in flow and pour as much cooling water into the engine as it can. We have explained the procedure down below-. lol, I have not done it, but it might be cleaner to use compressed air to blow out the plastic fitting at the end (not the hose). If you have had the boat in storage, its likely that pests have taken up home in that area. We will help you to restore your motor in no time. link to Can I Run My Outboard Without A Poppet Valve? Otherwise, you might need to give it a few taps with a soft mallet. check out the. Shows what's inside. Id imagine overheating one of those bad boys could get expensive. Should water coming out of the outboard be hot? So, lets hope that nothing goes wrong and best of luck. How could I know if my outboard water pump is bad? Now, open the pump cover up then place it on the top of the driveshaft. Most circulation issues and overheating engines are caused by a faulty water pump impeller. Maybe easier to check the thermostat. Less water cant cover inlets, thus it prevents water from getting to the pump. Slide the new seal down until it is resting against the pump housing. The temperature of the water existing the cooling system depends on where the aspirator is located. To get the warmer temperature at idle speeds requires the action of the thermostatic valve. As the engine starts to rev up, these blades back away from the liner. Yep. This does change depending on the age, RPM, and model of outboard and impeller though. It is hard to say without a close study of the particular engine. If they require replacement, now is the time. As a result, it isnt pumping. Even a poppet valve! Insert a thin wire into the outlet to confirm your suspicion. My 250 was weak too, but not as weak as my 300. All times are GMT-5. In the same way, check out the cooling water intakes. Infopop Corporation (formerly Madrona Park, Inc.), 1998 - 2000. Suddenly a malfunction shows up, that water is not streaming through the motor. There was an error retrieving your Wish Lists. Unless you might get an injury. This is a good time now with the oil out and the seals exposed. Archery, Take time to clean off all of the mating surfaces. Blackpowder, Rifles, Etc. If its different than normal the safe bet is to get it checked out. You shouldnt have to change the water pump itself, but the impeller should be a top concern. The impeller looks good (no missing bits), but we'll replace it anyway. Not only will this spread it out, but it makes sure there isnt too much compression. For example, if you run skinny and tend to pump a lot of sand, you will need to change the impeller more frequently than other boaters. Like my paw paw always said, better check them bulbs n fuses afore you rip out the wirin' harness. Good luck. If you have had the boat out previously without problems, you might have a damaged pump housing instead. The range depends a lot on the temperature of the water. In many cases, the water pump failure is actually a result of a bad impeller. Make sure you remove the plate. Use a social account for faster login or easy registration. I think a 5 year old water pump is due for a new impella whether the tell tale is peeing or not. If you see a foreign object present, remove it now. Unless someone ran it "dry" for longer than a minute or two the impeller should last a long time. When you purchase a water pump repair kit, you get a new impeller, as well as the seals, O-rings and gaskets. Your email address will not be published. Everything should look bright and new. Please try again. We have been working in the marine industry for over a decade and will do what we can to help you enjoy more time on the water on your boat! No sand blasting on skeg or prop. This small, round disc has spinning blades that move water through the unit. If you have set the telltale in the wrong direction, you need to detach that part. Just in case, it has been clogged by debris. Went to prep the boat for a trip and noticed a little head peeking out at me. Caution: You need to follow the safety measures while fixing the motor. This is a much better way of knowing what condition your cooling system is in. Most of the time, they get stuck inside the hole and die. Less than 100 hrs on engine. The motor gets stuck and becomes unable to pump water. Once everything is cleaned, use the new parts for reassembly.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'bornagainboating_com-mobile-leaderboard-1','ezslot_22',118,'0','0'])};if(typeof __ez_fad_position!='undefined'){__ez_fad_position('div-gpt-ad-bornagainboating_com-mobile-leaderboard-1-0')}; Use some of the gasket sealing compound and lower your gasket into place. Arrived ahead of time -- two days. Try to be more cautious while using the wrench. As Ches said, I'd remove the pee hole fitting entirely and run it for a few to flush it on muffs, them put it back on. Here are a few signs to watch for:if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'bornagainboating_com-large-mobile-banner-1','ezslot_17',111,'0','0'])};if(typeof __ez_fad_position!='undefined'){__ez_fad_position('div-gpt-ad-bornagainboating_com-large-mobile-banner-1-0')}; If the motor temperature starts to climb, you should be concerned. thanks for everyone's input. As we have identified the issue, its time to replace it with a new one. Insufficient water height could be a reason as well. In these conditions, it can go bad in just a couple of seconds. Some motors have a connection for a garden hose or maybe use the "ears" type flusher to give it a good blast. We are hopeful that you can fix this problem by yourself. You will get to know the impeller is working if you find water is pouring forth. Both times that my telltale stopped spitting it was clogged. The tell tail will occasionally get blocked with debris and usually can be cleaned out with a wire. You can take your boat to a big canal or a river or even to the sea. In the summertime, the sun evaporates the water from rivers, canals, and seas. MarineEngine.com does not offer troubleshooting assistance or repair advice by email or by telephone. Then, restart the engine to see if the problem is resolved. Now take the telltale and put it in the forward direction. By underdog57 in forum Johnson Evinrude Outboard Forum, By Kris Winiarski in forum Yamaha Outboard Forum, By kaddiddle in forum Mercury Mariner Outboard Forum, By dalefan4lyf in forum Mercury Mariner Outboard Forum, By ko4nrbs in forum Chrysler Force Outboard Forum, Forum Rules, Information and Announcements, Gas Inboard Engines, Inboard/Outboards, and Sterndrive Forum, Other Diesels Mfgs and General Diesel Questions, Miscellaneous Marine Engine Related Topics, Tubing, Water Skiing & Wake Boarding Forum, Suggestions and Feedback regarding this board and the website, Suggestions / Feeback about the MarineEngine.com site, Test posting of messages, photos and formatting, 1992 Yamaha 6 HP No water out of tell tale. There is a chance that your motors water stream fitting is clogged. Cooling tell tale on 300 Yamaha, A passenger noted yesterday that the cooling stream was more like a drizzle at cruise but stronger off plane. It is also important to remember that while on the muffs. Answer: If you find that the outboard motor is overheating or the impeller is living on borrowed time or there is a reduced stream of water from the cooling water outlet. We use cookies to improve your experience on this website and so that ads you see online can be tailored to your online browsing interests.