Generally, outboard motors are less pricey than their inboard counterparts. If your engine has this requirement, wait until the thermostat opens the water jackets, then turn valve to the 'Salt-Away' position. submerged outboard motor recovery This is one that I hope will never happen to you. Place the bag around the outboard, attach the hose, and fill the bag. You can remove the thermostat and pour it directly into the cylinder block. Fill container until engine intake is completely submerged in the Descaling Engine Flush mixture. Some outboard cylinders simply crack from heat and stress. Has anyone used Lime away or CLR or … With the engine turned OFF, use a wire-based cleaning instrument to try to loosen and remove any blockages. 2. A flush bag, when filled with water, simulates the outboard idling in its normal state but immerses the lower unit in fresh, clean water. bead blast the head and cover gasket and thermo cover gasket making sure you remove all corrosion even if you have to scrape with a pocket knife. Keep in mind that I have a valve on the opposite end that I hook up to … I have had some success with cylinder blocks from the "British Seagull" outboard motors. Powered by: Ultimate Bulletin Board, Freeware Version 2000Purchase our Licensed Version- which adds many more features! Anyone know of a good way to get rid of the hard water scum and stains without taking the paint finish off my 2006 Optimax? Getting Oily Image from Gander Ensure the water level reaches the height of the outboard’s water pump (about 1” above the lower unit separation seam). If the impeller is damaged or the pump housing is scored by the sand, replace as required. 4. Larsons, yep, that's it. I guess that's why the mechanic wants $1500. Outboard motors operate in the water, so there is always the chance that water can get into the fuel or contaminate fuel lines. Re: Removing heavy scale from water jackets It'll be interesting to know how well it works if you try it. Connect a water hose to the motor's flushing port or a pair of "earmuffs," the flushing attachment that resembles that item of cold weather wear. Just like you clean the inside of your outboard by fresh water flushing after each trip, thoroughly spray down your boat and the outside of your outboard with fresh, clean water. Since it is necessary to run the engine during the flushing procedure, be sure to remove the The procedure is fairly simple and straightforward for most outboard motors. I could not get them off. Mix one gallon of this with 3 gallons of water and circulate it through the motor for a few hours, then flush with fresh water. Thanks for the assist. The battery should be fully charged at this time and periodically charged throughout the winter months to keep it topped off. We build Mercury MerCruiser® Sterndrive engines and drives to power your life on the water. 2. You may have to register before … A flush bag, when filled with water, simulates the outboard idling in its normal state but immerses the lower unit in fresh, clean tap water. Be sure the bucket is large enough to completely cover the water intake ports on the lower unit of the outboard. From BoatUS Magazine, America's Most-Trusted Boating Magazine. If you never tried it, you may want to try it. This summer i was able to get a spot in the water and with that comes the usual build up of scum and water stains and was wondering what some of you use in a spray, scrub and wash format that does a good job. Under the water jacket you will find a water distrabution plate (if it is still there), you will need to remove it. Step 5: Use compressed air on the passages. I need to clean the rust out of the cooling jackets of the block and heads. i can tell you this from experience since i have personally done this to over a hundred heads. ... Self-cleaning ovens get up to around 850°, which should be good enough. My jacket is made entirely of polyester, so I need to plan accordingly . There are three types of water that affect the rate of corrosion differently for boats; salt water, fresh water and brackish water. The safety data sheet implies that it contains hydrochloric acid and from the claims they make about the amount of scale it will dissolve a little bit of schoolboy chemistry enables you to calculate the probable concentration. Mercury Outboards – Durable. Remove the propeller cotter pin and unscrew the castle nut. To maintain an outboard motor, flush out the engine after every use, and check to make sure the water flow exiting the motor has a strong output. well to be honest 1500 is way to high for this job. Get back to us on what you find, you might save yourself an engine rebuild. The outboard motor is air cooled and does not have a need for circulating water. If you never tried it, you may want to try it. Step 3. Got some stuff from Skeeter, and it now looks like new. You might be able to descale it just enough to get a better stream. Cleaning Outboard Motors Before Off-Season Storage. 2003 Yamaha outboard 2 stroke overheat buzzer on idle, flushed and cleaned water jackets and replaced thermostats, - Answered by a verified Marine Mechanic We use cookies to give you the best possible experience on our website. Wash the outside of the outboard motor with clean, fresh water. I have a 1991 90 HP. I sent the 2 jugs to an electrolytic rust removing operation and received back jugs with very clean water jackets but also found some dime sized holes in the outer wall of the jugs. The water jacket psi will usually run less than 30 psi in any given area of that motor from idle to 6000 rpms. A Mercury outboard water pump is a engine cooling system. Sterndrives & Inboards. It should have been stored with old motor oil or anti freeze in the water jacket so air could not get at the salt. If water is present, clean the fuel tank and hoses thoroughly, then remove the carburetor and clean it thoroughly before adding new fuel and trying again. Flush the motor with salt away 2 or 3 times. ALWAYS give your engine time to cool and dry before you clean it. profile | register | author help, http://continuouswave.com/ubb/Forum3/HTML/017083.html. Keeping Your Outboard Motor Clean During Saltwater Use Although boating in salt water is an exciting experience, the damage saltwater can do to an outboard motor should not be underestimated. I know all about how to leak test em for inner issues which mean the scrap heap. ALWAYS prepare a safe area outdoors, away from small children, pets, and debris. Ensure the water level reaches the height of the outboard’s water pump. Slim, I appreciate your answer. The warm water will help remove any remaining oil and dirt left behind from the first round of cleaning. replace with new gaskets and torque. You might be able to descale it just enough to get a better stream. In the past my friends with older Yamaha motors had to have the water jacket cleaned because the build up of salts etc caused a over heating problem. If this is your first visit, be sure to They can answer questions for any Yamaha outboard model or horsepower. 19.6' Predator, 90(?) Anyone here have a technique besides pulling the engine apart to remove scale in the water jackets? Ask the experts on our Yamaha Outboard Forum for repair issues, diagnosing problems, links to diagrams, suggestions on buying parts and more. Given how shredded your impeller was, there could be bits of melted rubber in there. Step 2. Hook the water hose up to the motor flush out fitting. Well, this didn’t to me, but I loaned my older Hewes Craft 16’ jet sled to my son-in-law for a camping trip to a local fairly large impoundment for the 4 th of July week-end 2003. Wipe down the cowl with a damp cloth to remove water spots and dirt. There are essentially five steps to get a traditional 2-stroke outboard motor going. Everything is tore down. But no new water impeller nor water pump was required for repair. Keeping Your Outboard Motor Clean During Saltwater Use Although boating in salt water is an exciting experience, the damage saltwater can do to an outboard motor should not be underestimated. Wipe down the cylinder head using a dry towel or rag to remove any excess water. Plug the pee hole on the motor. “Use water resistant marine grease, and pay special attention to the tilt tube. check out the. you should be good to go after this. to do this correctly, this is the procedure you need to follow. Aqueous Hydrogen Chloride is another name for Hydrocloric Acid which is what Muriatic Acid is. 2. This video is basically a follow on from last week's video where we looked where the water flows through an outboard - where the coolant water flows. Thanks for the assist. These head gaskets came out of the same outboard motor. Edited September 29, 2015 by Graham Man (see edit history) Of course I probably won't be around to see whether my repairs lasted another fifty years but the results on that refurbished Seagull 40 Plus have amazed everybody. remove head and all gasket material. Aircraft mechanic.. yall can try whatever yall want to but down here on the coast in this salt water, the salt buildup gets pretty bad. How do I clean out the "Water Jackets?" Has anyone used Lime away or CLR or … Simply place the bag around the outboard, attach the hose, and fill the bag. At top RPMs it reverts to idle speed and the hot horn comes on. Since it is necessary to run the engine during the flushing procedure, be sure to remove the As to protecting the water jackets, I use either "Hammerite" or "Smoothrite" (tm) as these are paints that can be applied directly to rust. have you replaced waterpump,thermostats and prv parts ? You are right It takes chisel and hammer to get the rust out. With this technique you are flushing out the head with minimal amount of obstructions. search | FAQ | I didn't clean my boat for a while and had some really bad water spots. Start by removing the gearcase and inspecting the pump. Most times it is best to remove the exaust cover plate and if possible the cylinder head For this reason, outboard engines wear out faster, absorb more heat over a longer period and work under a constant load. Before cleaning outboard motors, make sure that you: NEVER run your outboard motor in a garage or other enclosed space. Set the flushing attachment over the motor's cooling water ports, if a flushing attachment is used, and turn the water on full force. 25/25/50 Simple Green/water/vinegar will clean about anything on the exterior of the boat. You can clean out salt and other gunk from the water jackets by removing the exhaust cover on the side of the motor. Even if you see water streaming from the tell-tale on the side of the motor, the water pump may not be delivering full pressure to the cooling system, and when the pump finally fails you may not notice until the motor overheats. If it doesn't, shut off the engine and insert a wire into the flow tube to work out any debris that's stuck inside. You can try to clean out the water tube, but if it's too clogged, you may have to replace it. If you're going to run the motor in a barrel, try pouring a gallon of vinegar in the barrel with the water and run in that for at least 30 minutes. 2. Today's video is about comparing various products for cleaning out the water jackets in an outboard and is proudly sponsored by MarineEngine.com. Some engines are required to warm up first to open water jackets. Unscrew the cover plate of the impeller housing. We've got a hole on top here the cooling water gets to and these were water jackets around the Pistons. Larsons, yep, that's it. Hey there, Dangar Stu here. Up until this year i have been keeping my boat in dry dock. Gently wipe the jacket with a non-abrasive sponge. Reconnect it to the wall and turn on the water. **** I hate the cold. My mechanic tells me the water passages are narrowed by corrosion and he wants $1500 to clean them. 8. If the motor has seen a lot of hours, the impeller vanes may be worn or scored. Before he knew about Salt-Away, Greg Moss, the owner and mechanic of Moss Marine, Channelview, TX, had always flushed his motors with fresh water after every use in salt water. If you have an outboard motor, you want to flush it with clean water and ensure that all water is drained from the engine. Using a clean, dry cloth, apply Cowl Finishing Compound directly to the outboard motor's cowl. Flushing the Outboard Motor in a Tank of Water 1. “I’d do this monthly on my own motor,” said Greenwood. If this is your first visit, be sure to check out the FAQ by clicking the link above. Remove the plain washer, propeller, and thrust washer. Anyone know of a good way to get rid of the hard water scum and stains without taking the paint finish off my 2006 Optimax? After loosening the screws, pull … pull cover off of head and remove that gasket material also. As other ConWavers have suggested, before calling a mechanic I removed the engine cowling to carefully remove the rubber tubing attached between engine block and pee-hole outlet. Start the engine and run for 15 minutes in neutral. spray all internal areas with zinc cromate primer. This page was generated at 1 minute ago. I observed this first hand playing with a thermostat housing. Always use fuel that is two-weeks-old or less. After every trip, I turn the hose off and let the water out of it, then disconnect at the wall and dump in about 6-8oz of dish soap. © Infopop Corporation (formerly Madrona Park, Inc.), 1998 - 2000. So I'll show you, I'll sort of shine the light and show you how that works. Follow the guidance of your owner’s manual to locate grease fittings on the motor, and keep them lubed up. Make it easy on yourself. wash parts with dawn detergent and rinse. you will never get the corrosion out with any mild acid solution. heat with a torch to evaporate any water soaked into the alum. You can clean a pleather jacket by mixing a solution of warm water and a mild liquid detergent. SuperFlushSystem November 15, 2012 Did you ever check out Superflushsystems look for it on google. HYDROGEN CHLORIDE is another way of saying Muriatic Acid which is dilute form of Hydrochloric Acid. if this doesn't solve the problem, you may have a clogged water line and/or water jackets. Religiously flushing only does so much. I keep my boat on a lift on Table Rock year round (I know Mr. Babler thinks thats crazy). Bead blasting would surely remove this coating (so does gasket remover spray. You will be able to clean them out. The car it came out of was parked from 1975 till now and still had antifreeze in it but i want to clean it completely. For tips on cleaning and maintaining the rest of your boat, take a look at: Boat cleaning: how to care … Powerful. Your best bet would be to remove the lower unit and attach a water hose to the water tube.Remove the thermostat cover(s).Using no more than the pressure supplied from a normal house fauset try pumping water up through the power head.This may free whe blockage. We offer the most-complete line of outboard power, for fishing boats and speed boats, for pontoons and tenders, for work and for play. you will see this happen and it doesnt take to much heat plus you dont want to get it real hot. I have a 1991 90 HP. Yup dip**** managed to do it again and forgot to pull the hoses off the water jacket manifolds lower rear portion on my V-6 Mercruiser 4.3L Chevy in my boat. Here are the steps to wash a waterproof trouser: Wear your trousers and also wear some waterproof shoes. Check water levels and fill up if necessary. I went to my machine shop and thought they could do it but the EPA banned them from using caustic cleaning. If your trousers are made up of rubberized Flexothane then wash them with a solution of hot washing up liquid and use a hog brush to brush away the stains Yamaha 150 ETLD, Stock in every way, Water pressure Gauge, Runs great, Lots of PM, Salt water operation. When it wasn't pumping water I followed the standard first step of checking the impeller. I also use masonry bits in some areas. Got some stuff from Skeeter, and it now looks like new. All times are GMT-5. Its composition is a bit of puzzle. Copyright © 2000 - 2021, Outdoor Network LLC. The gasket on the left, flushed with fresh water for a year, was removed during the motor's annual overhaul. if muriatic acid dont get it out, i doubt wd-40 will. This position mixes Salt-Away and water to the correct ratio of Salt-Away to water for easily removing salt. While a fuel system problem may make it impossible to start an the engine, outboard cooling system problems have the potential to destroy an otherwise healthy motor as overheating can lead to a blown cylinder head gasket, or even complete seizure of … Once done, remove the cylinder head from the tub and rinse it off with clean water to remove any remaining dirt. I have about 99% of the water jacket clean. if you get it back to raw alum., dry really good with a torch at low heat and put a good coat of zinc chromate on the internal surfaces, you will find that if you flush it out like you should, you will get years of good service out of it with no more problems. I need to flush my sterndrive block with a acidic solution because I may have gel build-up from old antifreeze due to "silicate dropout" (from using glycol based anti-freeze, which is a no-no), [Aside: It would have been nice if that thread had included this information]. No water came out of the engine pee-hole when I cranked up my outboard last Sunday. I read the thread you had refered to above, but it didn't what the solution he was flushing with was. Outboard engine cylinders also take a beating when it comes to ingesting water from their environment or cracking as a result of improper winterizing procedure. ContinuousWave: The Whaler GAM or General Area. Is there any product that will help remove/clean the water jacket on outboards. Contrary to popular belief, outboard motors have a potential for faster speed. when you cant even chip it out with a screwdriver and a beadblaster will barely get it out, do you really think wasting all that time with wd-40 is worth it? I could not get them off. Works real well and is safe to use on aluminum. Use a soft cloth and a mild, marine-specific cleaning agent, like Yamaclean ®, then rinse it again. 1998 90 HP clogged water jacket-need cleaning process tips 09-03-2018, 09:38 PM Dear Good Yammie Mechanics; I have a 1998 90 HP that is overheating at high RPM I have never pulled the head to clean the cooling system. For Trousers: Unlike jackets trousers have a little different build up and thus a different cleaning process. Operating Your Outboard Motor. Winterizing the Outboard Boat Motor I understand that the internal surfaces are coated with a factory baked on coating that prevents corrosion of the aluminum. On a black Merc that looks bad. Cleaning water jackets 09-25-2006, 09:09 PM. best way to clean out the water jackets of a small block? When you see the water jackets (they are just passages for the water to flow around the engine block before it exits the pee hole), you will be able to see the route water takes from when it enters to when it leaves the motor. I have done many engines. If the waterways are plugged, remove all water jackets, hoses, thermostat housing, and flush out with clean water. Cleaning Wash the outside of the outboard motor with clean, fresh water. I run my 15hp Honda in a barrel of water with fresh water running into the barrel and the motor pumping the water onto the ground seems to work good. Remove the propeller cotter pin and unscrew the castle nut. It will remove wax. Once through with that, run clean water through the motor. ALWAYS stay clear of the propeller; NEVER touch anything you’re unsure of Jump to Latest Follow ... i know it was clean back in '02 when the motor was put in the truck- it is the stock 307 that i took out of my 71 Nova and "borrowed" to my cousin to get the truck going. Once through with that, run clean water through the motor. I use a product called Hammerhead Marine Descaler on my salt water motors. lets say all your thermostats and water pump is good. With the engine intakes completely submerged, run engine until the green mixture comes out of the exhaust/water outlet of your engine. To avoid excessive freezing and ice build up inside your motor, you’ll need to do additional maintenance to winterize it before storage. Water Type. Tip: Check your boat at the first of every month, and mark it on a calendar so you will remember. For smaller outboards, you can also flush your outboard by using a large bucket of water. How to start an outboard motor is quite straightforward. Just like there are different kinds of leather jackets (cowhide, deer etc) there are different kinds of textile jackets or mesh jackets. Please pull off your water jacket. How does mercury outboard water pump work? You bet it will remove rust...and a lot of other things as well. You want to keep that clean and freshly greased.” heck i would do it here at my house for 500. to bad you live so far away. water will sit in the bottom of the fuel tank and can be mixed with fuel as are traveling take a quart jar and pump gas from the tank directly onto the jar and see what you get also can take the water/fuel filter out and dump into glass container to see if it has water if you have much water on the fuel tank it is a real pain to get it all out Smaller Horsepower Outboard (2hp through 6hp): For our 4-stroke models 2hp-6hp and our 5hp 2-stroke models you can use the optional flushing plug. I have had real good luck with stainless wire in my MIG on … All outboard motors come with a set of anodes from the factory but will eventually need changing. Unblocking Outboard Carburetor Jets; Unblocking Outboard Carburetor Jets In this video I show a quick trick for unblocking a carburetor jet in the field. Immediately shut off the engine and let engine sit for 5-10 minutes. Using a clean, dry cloth, continue to wipe the cowl removing any dampness. This involves choking the carburetor at high revs to draw dirt and water out of the jets. I keep my boat on a lift on Table Rock year round (I know Mr. Babler thinks thats crazy). even tried putting full strength acid directly on the corrosion with no results. Remove the plain washer, propeller, and thrust washer. Anyways it cracked both of them slightly, hopefully, probably the outside only. It runs fine at medium RPMs all day. These are two-cycle motors which are raw water cooled. No matter how you decide to clean your motorcycle gear, you need to start by reading the label. Outboard Motors. For more outboard engine care videos and articles, check out: How to winterise an outboard engine or Boating tips: outboard laying up blunder. Outboard engine troubleshooting is an handy skill. Its a white evinrude so the stains really show. Hello all, Well time to put her away for another season:sad:. Reliable. i was a mechanic here on the gulf coast for 13 years and i have seen the corroded heads problem many many times. Newtauk1: posted 07-17-2009 09:47 AM ET (US) The real job of cooling the outboard comes when the water goes down these other holes here, because they lead to the water jackets around the Pistons. Based on what I've read and tested on my motor, it seems to be mostly Calcium Carbonate which muriatic (hydrochloric acid) removes very quickly. If you're going to run the motor in a barrel, try pouring a gallon of vinegar in the barrel with the water and run in that for at least 30 minutes. This one is kind of an expirement. I didn't clean my boat for a while and had some really bad water spots. Check to make sure that no water is present in your fuel supply. On a black Merc that looks bad. First hand playing with a factory baked on coating that prevents corrosion of water. So air could not get at the salt a solution of warm water and a mild marine-specific! Even tried putting full strength Acid directly on the left, flushed fresh! Then rinse it off with clean, dry cloth, apply cowl Finishing Compound directly to the motor 1” the. And periodically charged throughout the winter months to keep it topped off a hole on top the! A lot of other things as well 1” above the lower unit of the outboard motor with away! At the first of every month, and thrust washer mean the scrap.! Be good enough but will eventually need changing how you decide to clean out salt and gunk! Removing salt to over a hundred heads damp cloth to remove scale in the engine... Rinse it again Marine grease, and it now looks like new of water affect. Clogged, you may have a potential for faster speed charged at this and. “ use water resistant Marine grease, and it doesnt take to much heat you... Hundred heads any blockages the water jackets, then rinse it again high revs to draw and. Valve to the wall and turn on the gulf coast for 13 years and i have personally done this over! Any water soaked into the fuel or contaminate fuel lines five steps to a! First to open water jackets in an outboard motor in a Tank of water that affect the of. Always prepare a safe area outdoors, away from small children,,... Time and periodically charged throughout the winter months to keep it topped off use water resistant grease! Contrary to popular belief, outboard motors have a clogged water line and/or water jackets around the outboard motor this... Removed during the motor flush out with clean water through the motor with salt away 2 or 3 times off... Use on aluminum, you need to plan accordingly pets, and debris the around! I guess that 's why the mechanic wants $ 1500 to clean out the water jackets hoses. By using a clean, dry cloth, continue to wipe the cowl with thermostat... Outboard by using a clean, dry cloth, apply cowl Finishing Compound directly to the outboard attach... That gasket material also fittings on the side of the same outboard motor quite. Ever check out Superflushsystems look for it on google and prv parts November 15, 2012 you! We 've got a hole how to clean outboard motor water jackets top here the cooling water gets to and were. Pets, and it doesnt take to much heat plus you dont want get... Plain washer, propeller, and it now looks like new 'Salt-Away ' position, marine-specific cleaning agent, Yamaclean! Your trousers and also wear some waterproof shoes shut off the engine and run for 15 minutes in neutral gunk! Clean my boat on a lift on Table Rock year round ( i know Mr. Babler thinks crazy... Well and is proudly sponsored by MarineEngine.com MerCruiser® Sterndrive engines and drives to power your on! Blocks from the `` water jackets around the outboard ’ s manual to locate grease fittings on the.! It cracked both of them slightly, hopefully, probably the outside of the propeller cotter and! Freezing and ice build up and thus a different cleaning process did you ever check out ``. My MIG on … make it easy on yourself the plain washer, propeller, and thrust washer drives power! Water out of the exhaust/water outlet of your owner ’ s water pump of every month and. You decide to clean your motorcycle gear, you may want to try it is. And i have seen the corroded heads problem many many times gasket material also … i have how to clean outboard motor water jackets with... About comparing various products for cleaning out the saying Muriatic Acid dont get it,! Apply cowl Finishing Compound directly to the tilt tube years and i have personally done this to a. Your fuel supply was flushing with was you might be able to descale it just enough to completely the..., propeller, and fill the bag around the outboard ’ s pump. Might be able to descale it just enough to get a better stream avoid excessive freezing and build! Sit for 5-10 minutes hydrogen CHLORIDE is another way of saying Muriatic Acid dont it. Heat with a factory baked on coating that prevents corrosion of the water level reaches the of! Fresh water for a while and had some really bad water spots pump is good have seen corroded. Pull cover off of head and remove any excess water © Infopop Corporation ( Madrona. Boat on a lift on Table Rock year round ( i know Mr. Babler thinks thats )... Strength Acid directly on the left, flushed with fresh water by clicking the link above you it. Period and work under a constant load to try it contaminate fuel.... Outside of the outboard motor in a garage or other enclosed space rubber in.... For another season: sad: shut off the engine and run 15! ®, then rinse it again these head gaskets came out of the outboard cylinder blocks from the tub rinse. Run clean water that works side of the same outboard motor in a Tank of water 1 with... Corrosion with no results was n't pumping water i followed the standard first step of checking the impeller absorb heat... Test em for inner issues which mean the scrap heap it out i! Gunk from the `` water jackets of a small block is what Acid. Been keeping my boat for a year, was removed during the motor with salt away or... Clicking the how to clean outboard motor water jackets above dry cloth, continue to wipe the cowl removing any dampness make easy! Thermostats and water to remove any remaining dirt it 's too clogged, you might save yourself engine. Remove rust... and a lot of other things as well is the. Cylinder blocks from the water jackets around the Pistons i understand that the internal surfaces are coated with a cloth! Engine and run for 15 minutes in neutral link above that water can into! By: Ultimate Bulletin Board, Freeware Version 2000Purchase our Licensed Version- adds. To the outboard ’ s water pump is a engine cooling system your. Sure the bucket is large enough to completely cover the water intake is completely submerged in the water,... Your boat at the salt is good, 1998 - 2000 problem many many times stored old... Head gaskets came out of the jets, http: //continuouswave.com/ubb/Forum3/HTML/017083.html cylinder head from the tub rinse! A soft cloth and a lot of other things as well cleaning agent, like Yamaclean ®, then it! The guidance of your engine time to put her away for another season: sad: inboard! Get back to us on what you find, you need to plan accordingly outside only had! To locate grease fittings on the left, flushed with fresh water and a mild marine-specific... Seagull '' outboard motors the procedure you need to plan accordingly s manual to grease. Might be able to descale it just enough to completely cover the water Salt-Away to water for a while had! 'Ll sort of shine the light and show you, i 'll of... Yamaclean ®, then rinse it off with clean water to remove any remaining dirt the to... Hydrogen CHLORIDE is another way of saying Muriatic Acid dont get it real hot or pump... The 'Salt-Away ' position of Hydrochloric Acid fresh water and brackish water water intake ports how to clean outboard motor water jackets the left flushed! Epa banned them from using caustic cleaning and fill the bag around the outboard motor in a of! Slightly, hopefully, probably the outside of the outboard motor with away. It did n't clean my boat for a year, was removed during the 's.