You may need to drop the lower unit and inspect. INSTANTLY DOWNLOAD outboard repair manuals straight to your computer in seconds. Get the best deals on Yamaha Complete Outboard Lower Units when you shop the largest online selection at eBay. Newly designed Lower Unit Fill/Drain Kit comes with all the necessary components to convert your existing drive unit. The lower units of outboard engines house such components as the shift linkage, bearings, water pump, gears and driveshaft. cut small gray hose on lower port side of silincer n zip tied it. SEI is currently producing lower units for V6 outboards. The Composite Intake Manifold on Yamaha's Jet Drive F150, F115, F90, F60 and F40 feature long tube intake tracks, tuned to increase airflow. com FREE DELIVERY possible on eligible purchases. The lower units offered by SEI are fully compatible and interchangeable with Mercury, Yamaha and Johnson Evinrude lower units. The pump screws on to the threads of quart size necks that most oil manufactureres use. Either way you have a bad seal and or cracked lower unit. We work with the top suppliers in the industry. I just live with it and change oil every year. I put in new oil and took the boat out for one run, came back and the oil was milky again. POSTED 8/20/2018. Outboard - Oil coming out of exhaust. 2000 model the old 12 volt trim / tilt motor has one blue lead and one green lead and has 6 mounting screw holes at its base regards brooke. 9 high thrust/long shaft. com FREE DELIVERY possible on eligible purchases. The seal is crushed and destroyed and will now leak. The lower unit gear case oil on the Mercruiser Alpha One outdrive serves a very important function. Changing Oil for Your Lower Unit in a Mercury Outboard. I change fluid and its was perfect no cloud no water. What you should know about this often overlooked marine system. In this case it is the oil seals around the prop. 2 stokes put out a. 5 4-stroke My 2007 Yamaha 2. SERVICE TIP: Are you suspicious that your gearcase is leaking because you see black oil "leaking" around the propeller or collecting on the garage floor under the lower unit? Relax, because 9 times out of 10 what you're seeing is simply the residual lubricating oil running down out of the exhaust housing. How do you fix a lower unit oil leak in a mercury 9. Case of Yamaha 4 stroke oil $30/case change oil every 50hrs. This is probably a problem that is beyond my mechanical ability. Quicksilver High-Performance Gear Lube SAE90. To check the seals you need to have a pressure/vacum test performed when the lower case is. there are a bunch of o-ring seals in there(10 or 15) inthe seal kit and probably a good idea to replace the water pump impeller while u got the lower unit off make sure u install it correctly or it wont pump water. Yamaha Marine 90430-08003-00 Gasket. You may have to register before you can post: click the register link above to proceed. The correct oil level indication is at the mid-point of the pattern. DOWNLOAD 60HP Outboard Repair Manual Evinrude Yamaha Mercury Mariner Johnson Suzuki INSTANTLY DOWNLOAD a 60 horsepower outboard repair manual straight to your computer in seconds. Even if the old O-ring looks good, it is better to change it as a pressure leak through the gasket will cause your engine to lose power. Tech help application charts. Any ideas on what could be causing the oil leak and recommendations on a good outboard mechanic. DOWNLOAD 50HP Outboard Repair Manual Mercury Yamaha Johnson Evinrude Suzuki INSTANTLY DOWNLOAD a 50 horsepower outboard repair manual straight to your computer in seconds. 62Y-L-4172? last no. SAE 80 Hypoid gear oil. I noticed a small bit of what appeared to be fresh oil leaking from these drain holes too. Replace the water pump and 2. Its internal mechanical workings put tremendous pressure on the lubricant inside. It's not uncommon for intake gaskets to corrode and rot over time, resulting in moisture entering the oil. It is most definitely engine oil. Therefore, add oil slowly and in small amounts, and do not attempt to “top. Remove the oil drain bolt first, and then remove the oil level. Sure, you could pay a marine mechanic to take care of this, but it's a simple process which you can do right in your driveway or in the boatyard, saving both time and money. Yamaha Lower Unit Oil. All gears are replaced with 100% OEM components for the best performance, quality and life of your unit. Engine Oil Maintenance Tools; Fuel System Tools; SIM YAMAHA DIAGNOSTIC CABLE; Lower Unit Special Tools; Test Harnesses; Trim and Tilt Tools; ACCESSORIES. Yamaha Marine 90430-08003-00 Gasket. Nevertheless, there is still a difference in the level of quality between these suppliers (whether the replacement parts are new or aftermarket, etc. if there is water in the lower unit then when you remove the drain plug the water will come out first or the oil wil look like a tan milky color. The main purpose is to inspect the lube for water. at no extra cost. cut small gray hose on lower port side of silincer n zip tied it. Gaskets on the lower unit drain and fill holes should be checked each time it's replaced and replaced when necessary. This season I noticed oil on the driveway. The oil is completely black so doesn't look milky or anything. INSTANTLY DOWNLOAD outboard repair manuals straight to your computer in seconds. That oil has nothing to do with your gear oil in your lower unit unless it has a crack or the prop seal is gone and then if water was in it it would be a grey milky colour. 00 price is negotiable. I changed the oil in my lower unit and it was milky so I figured water had made its way in. That is until someone gets water in their lower unit and loses a gear case. Originally designed for high powered off shore racing boats, M8 Marine Gear Oil contains seal conditioners and an exclusive blend of synthetic additives that protect from rust and wear. The threaded fitting at the end of the hose fits your lower unit, use the adapter if you have a YamahaNEVER USE A WRENCH - if it is the. Buy Yamaha Marine New OEM Outboard Lower Unit Oil Drain Gasket, 90430-08003-00: Gaskets - Amazon. The lower units offered by SEI are fully compatible and interchangeable with Mercury, Yamaha and Johnson Evinrude lower units. What you should know about this often overlooked marine system. Gaskets on the lower unit drain and fill holes should be checked each time it's replaced and replaced when necessary. Lower units with a core charge come with a prepaid return label to ship your core back for credit. Since you just posted this, I'm guessing you ran it with the muffs on with the engine having no boat weight load on it. If you have an outboard on your dinghy, you're going to have to periodically change the lower unit oil. Piston application chart. If the leak isn't evident by the trace oil there, a pressure test of the gearcase will be needed. 9 high thrust/long shaft. OEM Yamaha Lower Drain Plug Gasket. low oil pressure warning indicator is on EMU31410 and the engine oil level is lower. Like virtually every motorcycle on the road today, Yamaha's mighty XVS 1100 V-Star relies on a consistent level of oil to lubricate the inner components of its motor. This Site is best viewed in IE7 or newer and Firefox 3 or newer. We also stock both upper and lower OMC Cobra outdrives and all the gears, shafts, seals, and bearings. Change the gear lube. Replace the water pump and 2. Lower unit oil is needed to change once in a season or after every 100 hours to ensure best performance. We are not affiliated with Mercury Marine and accept no advertising. Few maintenance chores are as important as changing the lower unit oil on your boat's outdrive, on a regular basis. In this case it is the oil seals around the prop. Piston application chart. i only have 340 hours on the motor. 1) The leak appears to be coming from the water intake holes in the lower portion of the outdrive. All gears are replaced with 100% OEM components for the best performance, quality and life of your unit. i hit a rockpile filed a insurance claim got a new lower unit. Priced and sold each,These are the most common used on Yamaha, BUT they do not fit all Yamaha models! Please refer to our online Yamaha Parts Lookup located at the right of our site for your model of Yamaha Outboard. This one is hard to trouble shoot because the gear oil leaks around the shaft and then into the impeller housing where it mixes with the water, goes through the engine and out the exhaust. 2 stokes put out a. Maintenance NOTE: If any leaks are found, consult your Yamaha dealer. It seems that I have the same problem with oil leaking after extended driving periods at high RPM's. Never seen lower unit oil blackeven when very old. Also, only Mercury features Dual Water Inlets, including our patented low water pickup located on the front tip of the torpedo, ensuring a consistent flow of cooling water. Titan® Oil Stop-Leak is the safest, strongest and most advanced oil stop-leak on the planet. hey read your post and had the same thing on my evinrude 60 hp. Up to 40% of the fuel oil mix is blown out unburnt, at idle rpms. Brands include Mercury, Evinrude, Johnson, Mariner, OMC, Volvo and more. Then you can clamp a Vise Grip pliers onto the shaft (at a location where no seal or impeller will be). Boat Parts and Accessories Store Find Replacement Boat Parts, Electronics, Navigation, Engines, Fishing Supplies, and more. I just live with it and change oil every year. Seal Kit Lower Unit for Yamaha Outboard 2 HP 89-02 6A1-W0001-23-00 Fits the following models: 1989 2SF 1990 2SD 1991 2MSHP 1992 2MSHQ 1993 2MHR 1993 2MSHR 1994 2MHS 1994 2MSHS 1995 2MHT 1995 2MSHT. Oil Leaking around lower unit We are a group of Verado owners from all over the world that encourage the free exchange of information about the Verado engine. If that screw is missing you need a new one and you need to drain and refill your lower unit. Got a pair of f115's my self. Lower unit oil smells rotten and is generally thick has a distinct Smell. For Yamaha outboards that's at 20 hours, and draining that oil will get any possible debris out of the engine. Yamaha is replacing the entire oil pump. SAE 80 Hypoid gear oil. is oil injected all the oil isn't burnt completely and will come out throught the prop opening because that is where the motors exhaust is. ECM00020 If the warning system has activated, stop CAUTION: the engine and consult a Yamaha dealer Do not continue to run the engine if the immediately. The seal is crushed and destroyed and will now leak. Titan® Oil Stop-Leak is the safest, strongest and most advanced oil stop-leak on the planet. Bought a boat a while back 2nd hand and the engine has been running like a top. Re: Oil coming out of two-stroke exhaust I currently have a 6year old 90 merc that spits instantly, a brand new 250 Suzuki that takes 30 seconds or so to pee when cold, and just sold another boat with a 200 Yamaha on the transom that would start peeing for over a minute--and I had that one since new. Parts would have cost me $500 and another $600 in labor as the powerhead and lower units both need to come off. this lower is repairable the case is not cracked no gear oil leak. Its internal mechanical workings put tremendous pressure on the lubricant inside. the lower unit is fairly easy to remove, if you are a do it yourselfer. You are just a click or two away from thousands of Yamaha Marine parts for all Yamaha outboard motors manufactured each year from 1984 up until the present day. That is until someone gets water in their lower unit and loses a gear case. These gearcases come completely assembled and ready to install. This hardworking device just needs some simple, regular maintenance to help it stay that way. 50 1994 Yamaha Vx250 2-stroke Outboard 30" Lower Unit Standard Rotation Lower Unit - $750. What should the compression be for 1988 yamaha enticer 340 1999 gp800 waverunner how to take off carb, 2000 xl 700 1983 waverunner how to adjust carburator, 1982 waverunner 800 carburetor problems, 1981 waverunner gp 1200 carburetor cleaning 1980 yamaha lower unit schematic 1998 yamaha waverunner 800 no spark, 1999 waverunner spark plugs, 1979 yamaha gp800 waverunner spark plugs, spark plug. This Site is best viewed in IE7 or newer and Firefox 3 or newer. EMU29153 Checking power trim and tilt system EWM00430 WARNING Never get under the lower unit while it is tilted, even when the tilt support lever is locked. Here is a photo of what happens when the lines of a paraglider get caught in the propeller. 2005 Yamaha F150 Lower Unit leak. Engine seems to be running fine. 3) I checked the Engine Oil and that was at the "Full" line. Using a big hammer, pound on this Vise Grip trying to drive it out of the splines in the crankshaft. First year owner. The lower drain/fill plug screw is usually located on the starboard side of the lower unit, beneath the "bullet-shaped" portion of the lower unit housing. Since there is virtually no Yamaha service where I live I would appreciate very much a more detailed comment on what was done to fix it. By clicking close you agree to use the site as is. It really is not that hard to remove the powerhea dn replace if you want to and IF the seal is actually damaged and leaking a bigger worry is that water can get past the seal and into the lower c/shaft bearing and eventuall the internals-that is more of a. Yamaha Lower Unit Oil. Loosen and slightly remove bottom drain plug in lower unit just enough to allow a bit of oil to exit onto your fingers. Yamaha 4 stroke Leaking lower Unit Gear Oil? May 15th, 2016, 04:32 PM Hi all New to Boating and new to this Site, i Joined Because im having problems with my Outboard and wanted some Expertise help,. If the oil is blackish blue, it needs to be changed right away. Sure, you could pay a marine mechanic to take care of this, but it's a simple process which you can do right in your driveway or in the boatyard, saving both time and money. If this is your first visit, be sure to check out the FAQ by clicking the link above. any tips as to what else would cause leak appreciated ?. g general information, specifications, periodic checks and adjustments, fuel system, powerhead, lower unit, bracket unit, electrical system, and troubleshooting analysis. This high-quality replacement kit meets OEM specifications. It drips like this year round. The chart at the end of this guide lists the approximate amount of oil needed to fill the lower unit of each model currently offered by Tohatsu. Is there a seal the shaft go's through dos it go down into were the oil is. leaking engine oil from the. Lower units house the gears, drive shaft, propeller shaft, water pump and raw water inlet for both outboard motors and inboard/outboard motors, where the lower unit is known as a sterndrive, gear case, outdrive or simply a "drive. Quicksilver High-Performance Gear Lube SAE90. Lower units have very little extra oil and space for expansion, Therefore if the oil foams too much you will loose your lubrication. If the oil has a milky appearance, it means you have water intrusion and need to vacuum/pressure test the gearbox to see which seal(s) have failed. Engine Oil Crankcase & Gear Lube Capacity Outboard Lower Unit Capacity Charts YAMAHA Model Year Oil Capacity Std. In order to place an online order you must select a Yamaha dealer in which to do business with. Also note that many of the yamis lower units take 33 ounces of oil, so pick up 2 quarts. The function of your lower unit is to convert the power from your engine to rotate the prop shaft and move your propeller. Lower unit oil changes are an important part of maintaining an outboard motor. Don't just go to West Marine I had the same problem with my yamaha and bought seals from West Marine it turns out that they are inferior to the Original Yamaha ones. Owners of some Yamaha outboards are incensed at having to pay thousands to repair their relatively low-hour engines. Lower units house the gears, drive shaft, propeller shaft, water pump and raw water inlet for both outboard motors and inboard/outboard motors, where the lower unit is known as a sterndrive, gear case, outdrive or simply a "drive. Took it to the shop and had it pressure tested and they just called and said everything checked out. POSTED 8/20/2018. When I got home, I checked the plugs and they were all dry and lightly colored. 4 stroke water pump application charts 2 stroke 3. The oil is black and has an exhaust smell to it. It happens more than you may realize because all of the power and torque of your engine, turning at thousands of rpms, is concentrated on two small rotating metal. There really are certainly a great deal of places to shop from on the internet, yet you have definitely gone with our web site and we value that greatly. Engine Oil Maintenance Tools; Fuel System Tools; SIM YAMAHA DIAGNOSTIC CABLE; Lower Unit Special Tools; Test Harnesses; Trim and Tilt Tools; ACCESSORIES. LOWER UNIT ATTACHMENTS - CONTROL LINKAGE Oil leak. It has not been fogged. Sealing the gear oil inside the gearcase, and keeping water from intruding into the gearcase are the two aims of all the shaft seals, o-rings, spaghetti seals and gaskets in a lower unit. All gears are replaced with 100% OEM components for the best performance, quality and life of your unit. 00 price is negotiable. The oil level sensor had to be replaced. Yamaha Marine 90430-08003-00 Gasket. The pump screws on to the threads of quart size necks that most oil manufactureres use. If, you suspect it lower unit lube. DOWNLOAD 50HP Outboard Repair Manual Mercury Yamaha Johnson Evinrude Suzuki INSTANTLY DOWNLOAD a 50 horsepower outboard repair manual straight to your computer in seconds. That looks like unburnt oil from the exhaust (which comes out of the prop hub) leaking out between the prop and the lower unit. 2) I checked the Gear Lube Oil Reservoir for the outdrive and that was at the "Full" line. Even if the old O-ring looks good, it is better to change it as a pressure leak through the gasket will cause your engine to lose power. These were part number 90430-08020-00 and are now Black and part number 90430-08003-00. Lower unit oil gallon Yamaha gear lube $20 every 100hrs It may seem I change a alot and may seem over kill. This unburnt fuel/oil mixed with carbon from the burnt fuel deposits in the mid section exhaust housing, then trickles out after you've turned off the outboard. It turned out to be at the water pump seals around the drive shaft. If the oil has a milky appearance, it means you have water intrusion and need to vacuum/pressure test the gearbox to see which seal(s) have failed. EMU29153 Checking power trim and tilt system EWM00430 WARNING Never get under the lower unit while it is tilted, even when the tilt support lever is locked. low oil pressure warning indicator is on EMU31410 and the engine oil level is lower. Lower Unit Gearcase Seal Kit for Mercury Mariner Outboard. Yamaha four-stroke outboards have a tapered oil sump design (smaller at the top than the bottom), so the closer the oil level is to full, the faster it fills. The extreme pressures exerted inside any outboard's lower unit will eventually break down the lubricant's effectiveness. for less than ten bucks you can but a simple device that lets you pump. Brands include Mercury, Evinrude, Johnson, Mariner, OMC, Volvo and more. I have also been using it almost every weekend. Yamaha outboards are one of the most trusted brands on the water and are known for their reliability and their light and strong motors. Be sure to label the lower unit that it has no oil. Oil leaking from out drive water intake. The oil floats on top of the water, and the water drips out of the drain screw when you crack it. The main purpose is to inspect the lube for water. The oil dripping from the lower unit where the exhaust comes out is a new issue. Locate your drain/fill plug screw and adjust the trim/tilt of your outboard motor or sterndrive so that this plug is in the lowest position possible in order to drain the used oil thoroughly. If that screw is missing you need a new one and you need to drain and refill your lower unit. We have found these outboards to a very smooth running 2 stroke. Buy Yamaha Marine New OEM Outboard Lower Unit Oil Drain Gasket, 90430-08003-00: Gaskets - Amazon. Tohatsu outboards were originally developed for commercial Japanese fishermen who needed a motor that could run for days on end, no matter what the weather. 2001 yamaha hpdi 200 trim motor leak, changing oil sea ram oil seal in outboard, cost of replacing a hydrolic piston seal on a mercury 75, cost to replace a2006 yamaha trim pumps seal, does outboard tilt trim leak and sometimes stop, how to replace seals in power trim and tilt, how to replace seals on 75 hp yamaha outboard motor,. Oil leaking from small hole in lower unit!! Trying to go boating with my family today and while removeing the cover i found small puddle of gear lube under the lower unit coming from small hole in front section of the lower unit. What should the compression be for 1988 yamaha enticer 340 1999 gp800 waverunner how to take off carb, 2000 xl 700 1983 waverunner how to adjust carburator, 1982 waverunner 800 carburetor problems, 1981 waverunner gp 1200 carburetor cleaning 1980 yamaha lower unit schematic 1998 yamaha waverunner 800 no spark, 1999 waverunner spark plugs, 1979 yamaha gp800 waverunner spark plugs, spark plug. Re: Oil coming out of two-stroke exhaust I currently have a 6year old 90 merc that spits instantly, a brand new 250 Suzuki that takes 30 seconds or so to pee when cold, and just sold another boat with a 200 Yamaha on the transom that would start peeing for over a minute--and I had that one since new. did some research on this issue and found that this is a relatively common problem. The lower units of outboard engines house such components as the shift linkage, bearings, water pump, gears and driveshaft. Browse quality remanufactured lower units for Outboards or Sterndrives here today. Oil Leaks in Outboard Motors When you turn on your outboard motor in or out of the water, you might notice a small amount of oil dripping out. Brands include Mercury, Evinrude, Johnson, Mariner, OMC, Volvo and more. Your owner's manual will tell you how often it should be done, where the drain plugs are and what oil to use. I change fluid and its was perfect no cloud no water. It also allows a cleaner means to purge and replace the existing lubricant without the inherent risk of spills. to verify a lower unit leak, remove the lower unit lower drain plug and see what the oil looks like. Oil leak in outboard motor? I have an oil leak in my 250 Mercury verado I don't know were it's coming from it looks like it's coming down the drive shaft for the lower unit. The oil is on the starboard side of the skeg, running down and dripping. Remove lowers unit remove water pump and housing remove bearing colleer remove back to back seals from coller install new and reassemble easy plaesy minimum tools required no special tools 1 man job about a hour. Core value is based on the condition of your prop shaft, drive shaft and gear housing. I have reviewed the manuals that Phenix kindly posted. GREASE FITTINGS; MOTOR FLUSHING; TRAILERING SUPPORTS; YAMAHA KEY SWITCH OUTBOARD KEYS; YAMAHA & RACOR FUEL FILTERS; 2-STROKE SERVICE MANUALS; 4-STROKE SERVICE MANUALS; SERVICE MANUALS. low oil pressure warning indicator is on EMU31410 and the engine oil level is lower. Have any of you changed the lower unit oil with the boat & motor in this configuration ? Tips and advice appreciated. LOWER UNIT REBUILD & Repair Outboard Clinic restores and rebuilds all outboard lower units. at no extra cost. So I would like to replace all the seals. 1 YEAR WARRANTY 1984-93 Yamaha Mariner 20" Lower Unit 40 50 HP 2 cyl 2 stroke. Fits many Yamaha models and hp. Only 2% of customers require a second treatment to achieve a "Full-Seal". Here you will also find your water pump/impeller. If the engine is leaking oil from the rear and over the transmission, the likely cause is a rear main seal leak (commonly attributed to overfilling the engine). Be sure to label the lower unit that it has no oil. Maybe the light went on in my brain. These were part number 90430-08020-00 and are now Black and part number 90430-08003-00. Dirt and grime can now enter the redrive and any oil in the redrive will leak out. tomorrow and noticed oil on the concrete. SIM YAMAHA is your dependable, affordable, knowledgeable, authorized USA Yamaha marine outboard motor and YAMAHA OEM outboard motor parts, Yamalube oil and accessories dealer for two-stroke, four-stroke and jet pump motors. Is that right? If you have run your motor at low rpm without load in cold weather, it is completely normal that unburned black oil drips out of exhaust or drain holes in lower unit afterwards, almost every two-stroke I've had did that. SAE 80 Hypoid gear oil. Replace the water pump and 2. We are not affiliated with Mercury Marine and accept no advertising. The lower unit gear lube should be changed every fall. Inspect your engine gaskets to ensure they are solid and not leaking. Maintenance NOTE: If any leaks are found, consult your Yamaha dealer. Drain all oil from the lower unit. Don't just go to West Marine I had the same problem with my yamaha and bought seals from West Marine it turns out that they are inferior to the Original Yamaha ones. but my motor runs great and to me is worth the cost of maintennce to see it fire every time you need. For Yamaha 25HP outboard parts, Yamaha 45HP outboard parts, and anything from 2HP to 350HP, we're here to help. Lower unit oil is needed to change once in a season or after every 100 hours to ensure best performance. Quicksilver High Performance synthetic blend gear lube outperforms automotive gear oil in marine applications because of its specialized additive package design. My lower unit is leaking oil. I would recommend going to Boating Dynamics or another certified yamaha dealer and buying new drain plug seals for the lower unit. Evinrude 1987 70hp rough running lower rpms lower unit lube 1985 25 hp merc 1976 johnson 50 hp vro lowerunit service manual causes of lower cylinder flooding with fuel on 70 hp 1975 johnson outboard changing lower unit gear oil on 1976 johnson 6 hp outboard 1977 mercury outboard link follower. A leak down test measures the percentage of air leaking past the piston and rings, this is more accurate than a compression test. It's not uncommon for intake gaskets to corrode and rot over time, resulting in moisture entering the oil. If that screw is missing you need a new one and you need to drain and refill your lower unit. 9 lower end units This unit has had water leaking into the oil chamber and consequently water and then beige colored oil draining out when I change the oil from the lower unit. We have found these outboards to a very smooth running 2 stroke. now any of these can be the problem but finding the leaking seal is the issue. Oil Seals Shaft & Bore Size Charts - Year/Model Index - Warranty Yamaha Gearcase Seal Kit Components - Oil Seals 62 TABLE OF CONTENTS YAMAHA Yamaha Aluminum. Ended up idling about 5 miles back to the house and could not go over 1,000 RPM without the boat sputtering and missing. Lower units have very little extra oil and space for expansion, Therefore if the oil foams too much you will loose your lubrication. Be sure to use the proper oil and filling procedure listed in your owner's manual. Re: Oil coming out of two-stroke exhaust I currently have a 6year old 90 merc that spits instantly, a brand new 250 Suzuki that takes 30 seconds or so to pee when cold, and just sold another boat with a 200 Yamaha on the transom that would start peeing for over a minute--and I had that one since new. just needs some welding it looks worst than it is. this lower is repairable the case is not cracked no gear oil leak. Each repair manual also contains a table of contents and an index page. Lower unit oil changes are an important part of maintaining an outboard motor. What should the compression be for 1988 yamaha enticer 340 1999 gp800 waverunner how to take off carb, 2000 xl 700 1983 waverunner how to adjust carburator, 1982 waverunner 800 carburetor problems, 1981 waverunner gp 1200 carburetor cleaning 1980 yamaha lower unit schematic 1998 yamaha waverunner 800 no spark, 1999 waverunner spark plugs, 1979 yamaha gp800 waverunner spark plugs, spark plug. Oil leaking from out drive water intake. The oil level diminishes as the miles and time wear on, either being burned away by the motor or, in worst-case scenarios, escaping through leaks in. The oil has to be drained out of the pan to remove the lower unit, otherwise, oil can be spilled all over the place, making a massive mess and creating an oily environmental hazard. No water and its def leaking from the screw. Manuals contain step-by-step repair procedures, illustrations, pictures and advanced troubleshooting. Don't see how it could be gear oil as even if the gear seal leak, you not be getting that oil sucked into the engine and blow out the exhaust. Without it, you go nowhere. 9 high thrust/long shaft. I agree with ya. Is there a seal the shaft go's through dos it go down into were the oil is. The Verado gearcase was built to withstand high torque and speed, with unmatched impact protection. Even if the old O-ring looks good, it is better to change it as a pressure leak through the gasket will cause your engine to lose power. Recently, the BoatUS Consumer Protection Bureau has been made aware of dozens of reports regarding serious corrosion problems in Yamaha outboards, specifically 2000 to 2004, first-generation F225 models. It also allows a cleaner means to purge and replace the existing lubricant without the inherent risk of spills. Maybe the light went on in my brain. LOWER UNIT ATTACHMENTS - CONTROL LINKAGE Oil leak. 4 stroke water pump application charts 2 stroke 3. I put in new oil and took the boat out for one run, came back and the oil was milky again. The shaft winds up the lines and they force the seal into the casing and jam it against the bearing. Lower unit leak F150 Motors and Props. DOWNLOAD 50HP Outboard Repair Manual Mercury Yamaha Johnson Evinrude Suzuki INSTANTLY DOWNLOAD a 50 horsepower outboard repair manual straight to your computer in seconds. Any idea what the problem with the lower unit might be?. Since it was leaking oil out,could also have leaked water in. A leak down test measures the percentage of air leaking past the piston and rings, this is more accurate than a compression test. If the hole you are talking about is good sized and threaded that is an oil fill hole that vents the lower unit when filling and should have a gasketed special threaded plug like the lower drain/fill bolt. Outboard engine lower unit leaks often result from a broken propeller seal. How to marine engine lube lower unit marine lower unit oil recommendation 2 stroke leaking fuel mixture around lower crank seal on outboard draining lower unit outboard motor lower unit outboard 2000 115 hp 2 stroke oil type signs that your outboard lower end is contaminated what is the cause of milky oil in outboard motor lower unit what to. SAE 80 Hypoid gear oil. 00 i am asking $775. Never seen lower unit oil blackeven when very old. To find the leak, you do need to pull the gear case. When on the lift, the motor is completely out of the water. 2/per case Oil filter. What you should know about this often overlooked marine system. Tohatsu outboards were originally developed for commercial Japanese fishermen who needed a motor that could run for days on end, no matter what the weather. tomorrow and noticed oil on the concrete. Gears chart for lower unit parts 115 thru 250 hp. I feel the engineers at Yamaha could have done better. Only thing to remember is if you now tip the lower unit, gear oil will leak (RUN) out the hole where the driveshaft was. OEM Yamaha Lower Drain Plug Gasket. So hopefully the lower unit is not damaged and I can figure out how to fix the leak and change the lower unit oil. Is it a clear tan brown it would be oil leaking past a seal, If it is a milky looking brown/tan then my guess would be water in the oil leaking past a seal. DO NOT over-tighten these or you can strip them out. bearing carrier assembly and the shift shaft. Oil leaking from out drive water intake. SAE 80 Hypoid gear oil. Brands include Mercury, Evinrude, Johnson, Mariner, OMC, Volvo and more. 2005 Yamaha F150 Lower Unit leak. there are a bunch of o-ring seals in there(10 or 15) inthe seal kit and probably a good idea to replace the water pump impeller while u got the lower unit off make sure u install it correctly or it wont pump water. Use caution when filling or adding oil. Since it is such a small leak, you will almost never find it. Lower unit oil smells rotten and is generally thick has a distinct Smell. Idle mixture screws 1990 merc 38hp gas leaking wont start idling rough engine surges yamaha 90 workshop manual hydraulic tilt how to reassemble lower unit on 1999 evinrude 70 hp 4 stroke how to adjust timing on 1993 evinrude 20 hp evenrude 1975 50hp specs compression evinrude 60 hp 1992 overheating troubleshooting enrichment pump on evinrude. Manuals contain step-by-step repair procedures, illustrations, pictures and advanced troubleshooting. My lower unit is leaking oil. Pump Marine Lower Unit is ideal for filling outboard motor lower unit fluids Fits: Mercruiser, OMC, Evinrude, Johnson, Volvo, Force and Gamefisher models Pump Marine Lower Unit | Canadian Tire Skip to Main Content. Yamaha 4 stroke Leaking lower Unit Gear Oil? May 15th, 2016, 04:32 PM Hi all New to Boating and new to this Site, i Joined Because im having problems with my Outboard and wanted some Expertise help,. This 8-step process is all it takes to ensure the oil in your lower unit is properly maintained. Don't believe the two seals on the drain/fill plugs would do that. 00 price is negotiable.