Mercury 60 hp bigfoot problems

Delaney Simchuk, Car Insurance WriterJan 19, 2023 Delaney Simchuk, Car Insurance WriterJan 19, 2023 This review is not provided, commissioned or endorsed by any company. Opinions a...

This was tough video to make. My Bass Tracker with a 60 hp Mercury 4 stroke outboard motor is having a major issue. I do solve one problem with the ole 60 hp... 2. Jun 13, 2010. #4. Re: Mercury 60hp Efi Bigfoot Stalling. Hi, I have a 92 Mercury outboard 60 HP that does the same thing. It starts ok, then after it passes 2400 Rpms usulaay in 10-20 seconds in shuts off. today I had to go back to the pier really slow so it wouldnt do it anymore. The carbs have been cleaned 2 months ago and the plugs are …Jul 18, 2011. #1. i have a 1997 mercury bigfoot 60 hp, we just put the motor on the boat and on the first trip out the horn has sounded it goes beep beep beep! I used the service manuals located in the sticky to troubleshoot the alarm and came up with with a bad oil sensor! however before i replace the sensor i have a question the manual states ...Having an HP printer can be a great asset for any home or office. But like any other technology, it can sometimes experience problems. Fortunately, there are professional support s...After approximately 150 hours of use (beginning of summer and end of spring) my [Mercury 60-HP Bigfoot] motor started to have a problem at lower RPM. This was a few weeks after the typical 100 hour maintenance package where the spark plugs and fuel filter were changed. It appears to miss or stutter slightly between 1,200 and 2,500-RPM.

Engine overspeed- that doesn't happen until 6000+ rpm. Low voltage/ electrical- test for volts at battery when the alarm is activated. Low oil pressure- check your oil level (i presume you change your filter regularly?). Usually, the low oil alarm also results in the revs being limited to around 2000 rpm. Coolant sensor failure- the guardian ... I've never seen one fail on that model in the last 15 years as a Mercury tech. Make sure you are firing on all cylinders. Start the motor up, take a good pair of insulated pliers and pull the spark plug boots off of the plugs (very easy to do on this model) the motor might quit or drop 300-400 RPM. If you pull one of and there is no change to ... Jul 9, 2021 · I have a Mercury 60 hp outboard that is blowing the 15 amp Smartcraft Data Bus fuse and stops charging the batteries. The fuse blows when the engine is revved above 2000 rpm. So far I have done the following: Had the batteries checked both checked out ok. Checked the stator output with DVA meter and got about 26v at 800 rpm and about 76v at ... Merc 60HP Bigfoot leaking LU-oil from vent screw-gctid680180. 09-08-2015, 09:33 AM. Hey gang! My 2013 Mercury 60HP Bigfoot is leaking what appears to be lower unit oil from the vent screw which is ABOVE the top drain hole! :angry: It sat for two weeks in the "down" or vertical position, which is how I normally store her when not in use.Are you experiencing issues with your HP scanner? One common problem that users encounter is outdated or missing drivers. Without the proper drivers installed, your scanner may not...Mercury 80W-90 Premium Gear Lube is recommended for gearcases for outboards below 75 horsepower. It outperforms automotive gear oil in marine applications by providing maximum protection against excessive wear in the presence of water and helps prevent corrosion and pitting. SAE 90 High-Performance Gear Lube was engineered to …A helpful video for maintaining your 40-60 FourStroke Engine. 40-60 FourStroke Engine Maintenance - Changing Fuel Filter 40-60 FourStroke Engine Maintenance - Changing Gear Lube10-824832 4 - Screw [ More info ] $1.70. 7 In Stock. Revise Search: All Models > 60 HP Bigfoot (3 Cylinder) > 0G760300 - 0T979999 (USA) > Jet Components. Mercury Marine 60 hp bigfoot (3 cyl.) jet components parts. Buy a genuine Mercury Quicksilver or aftermarket part.

If your Mercury dealer is fine with it, then make sure that it's properly defined on the invoice so that if you have problems in the future you can come back to the work he did. I can't see anything in the Mercury manual that calls for fogging the 60 hp fuel injected motor. I know that some will put a bit of oil in the spark plug holes.Runs wide open for 3 or 4 minutes then surges. Wait 30 seconds and hit it again wide open runs fine for 2 minutes. Then surges. New tank, new fuel line to the motor, new bulb, new low pressure pump and filter before that pump, new high pressure pump and cleaned VST. The screen under the regulator is suspect IMO.Download Manuals Instantly. Downloadable 60 horsepower 2-stroke and 4-stroke repair manuals are available for all models and years, including the following: Mercury 60 two-stroke engines. Mercury 60 four-stroke motors. 2002 Mercury 60hp 3-cylinder 20" shaft. 2001 Mercury 60hp two-stroke w/tiller handle. 1999-2000 Mercury 60 hp 3 cyl. carbureted. Mercury FourStroke 60 EFI BigFoot Brochure & Specs (19 pages) Mercury Marine Outboards Product Brochure. Brand: Mercury | Category: Outboard Motor | Size: 11.3 MB. Advertisement. Mercury FourStroke 60 EFI BigFoot Pdf User Manuals. View online or download Mercury FourStroke 60 EFI BigFoot Brochure & Specs. Aug 22, 2007. #2. Re: 60HP Mercury EFI alternator problem? Yes, you can check the output with a multimater placed on the battery terminals and the engine idling. If you are only reading in the 12.1-12.9 volt range, the alternator is not charging.2023 Mercury Marine® FourStroke 60 HP EFI SAVE OVER $1,300 ON THIS NEW MERCURY 60ELPT EFI 4-STROKE OUTBOARD! This is a brand new engine with a 3-year factory warranty. Engine features: 4-cylinder 4-stroke engine with EFI, electric start, remote steering, power trim, and shaft length designed for boats with 20” transoms.

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2001 Mercury 60 HP. 60ELPTO Bigfoot Classic. This 2001, 60 hp Mercury is made for saltwater. This outboard engine weighs approximately 238 pounds. It has 3 cylinders. The pistons have a 59 displacement. The bore width is 2.99" and the stroke length is 2.80". This model has a electric starter and power steering. Your engine's RPM range is ...Mercury 4 stroke 60 Bigfoot - YouTube. 6m3910 used 2002 mercury 60elpto 60hp bigfoot 2-stroke outboard boat Top 10 mercury 60 hp outboar d motor propeller Mercury prop hp stainless trophy x13 sport ebay. Mercury bigfoot efi fourstroke outboard boat motor buyers guide. Mercury/mariner propeller nut kit 9.9hp bigfoot 2005 and … MarineEngine.com keeps thousands of Mercury parts in stock. We offer the largest selection of old stock, Quicksilver original parts and quality discount aftermarket parts by Sierra Marine, Mallory Marine, and CDI Electronics. Choosing the Correct Parts. Your Mercury serial number is the key to finding the correct parts for your motor. We review the 60 hp Mercury four stroke Bigfoot outboard. How does it perform? See what the expert said.Apr 23, 2018. #2. Squeezing the bulb means that your fuel pump isn't pumping properly. Float adjustment is for sealing off the fuel supply at low rpms. At wide open throttle gravity has the float in it's lowest position, needle valve open the widest, and the least amount of fuel in the carb bowl. Something is wrong.

#1. 60 HP EFI Bigfoot - Fuel Delivery Problem. 05-17-2010, 12:46 PM. My apologies for the long story..... My wife and I put our pontoon in yesterday. It had 15 …Page 69 MAINTENANCE 2. Remove the spark plug leads to prevent engine from starting. 26899 3. Straighten the bent tabs on the propeller nut retainer. 26900 4. Place a block of wood between the gearcase and propeller to hold the propeller and remove the propeller nut. 26901 5.when typing mercury platinum cables online, can only find 'CC189 MERCURY/MERCRUISER GEN II cables'. Are these the new version of platinum cables? I pretty much the exact same problem as OP and dont want to buy a new set of cables which wont end up fixing anything. im running a 2003 mercury 60 HP elpto bigfoot on a 4.5m centre console tinny.1,615. Jul 17, 2012. #9. Re: 60hp mercury fuel problem,HELP? Not likely as there is no gas there for the pump and primer bulb to suck and use. Disconect the fuel line between the tank and bulb and blow air in the line and see if you can hear, or see, the air bubbles in the tank with the fill cap removed. Oldman570.Jun 15, 2011. Messages. 2. Jun 15, 2011. #1. All, I have a 20" Harris Flotebote w/60 HP Merc Bigfoot - ran great last year. 5000RPM was full throttle. This year I took it out for the first time and can only get 4000RPM at full throttle. I figured it was a fuel delivery issue so i replaced the fuel line from tank to engine, put new fuel filter ...Are you experiencing issues with your HP scanner? One common problem that users encounter is outdated or missing drivers. Without the proper drivers installed, your scanner may not...Setting up a wireless printer can be a convenient and efficient way to print documents from multiple devices. However, like any technology, there can be hiccups along the way. One ...After approximately 150 hours of use (beginning of summer and end of spring) my [Mercury 60-HP Bigfoot] motor started to have a problem at lower RPM. This was a few weeks after the typical 100 hour maintenance package where the spark plugs and fuel filter were changed. It appears to miss or stutter slightly between 1,200 and 2,500-RPM.

20-11-2015 · – 2002-2004 Mercury-Mariner 60 HP EFI 4-Stroke (FourStroke) Bigfoot. Expert text service repair manual gives complete step by step information on maintenance, tune-up, repair and overhaul. Mercury 2.5/3.3HP 4-stroke Owner’s manual [PDF I am looking to obtain the owners manual and service manual for a 1996 2 stroke …

If the tach is properly set (6P) then either the engine is not making full power or there is some excess drag on the boat. 40/50/60 HP Big Foot pontoon motors typically can run 14 x 9 to 14 x 13 four blade pontoon props. Pontoon props (Mercury makes one) have big rounded ears and provide the push a pontoon needs.The 40-60hp Mercury engines are Electronically Fuel-Injected, which provides turn-key starting, increased power, improved fuel economy, and spectacular reliability. Peace Of Mind. Engine Guardian uses key external sensors to monitor all the major functions of your engine. If the proactive operator-warning system detects a potential problem ...If you think you hit stumps now wait to you see what a big foot can hit! The shaft is longer so that the prop runs deeper in the water. The gear ratio is different also, …Messages. 2. Aug 20, 2007. #1. I have a three month old Mercury 60 hp 4 stroke Bigfoot engine. At low revs it idles irratically. I have had it services (it only has 33 hrs on the clock) as well as computer diagnosed with no results. Some of the agents even suggested that the engine should miss like this and that; "that is what fourstrokes do"!!!!Matches the acceleration and fuel efficiency of Mercury's competitor’s more expensive 70hp outboard model. Great for aluminum tiller, aluminum console, jon, utility, and fish & ski boats. Mercury's 60ELPT Command Thrust Outboard - Steering: Remote Mechanical, Starter: Electric, Shaft: 20" Long, Weight: 269lbs, Power Trim & Tilt.Our friend Jeff O'Brien from Mercury Marine explains the benefits to rigging a smaller Deep-V boat, like the Tracker Pro Guide V16, with a 60HP Mercury Big F...Hi i have a 2003 mercury efi that had the same problem. my problem was that the tell tail was pumping fine or thats what i thought. anyway cut a long story short after checking thermostat impeller etc my issue was the rubber grommet below the power head on the adaptor plate. the cause was corrosion was squeazing the grommet and …Topic: Mercury 60-HP Four-stroke: Fuel Supply Problem: whalerman03: posted 05-23-2007 10:32 PM ET (US) ... We had one of those fail on our Mercury BigFoot EFI 60, and the motor was very hard to start even after pump the bulb, and then would only run a few seconds. The high pressure pump doesn't sound like your problem.Re: 2006 Mercury Bigfoot 60hp wont' crank. I take it you mean it wont start, not cranking is the motor is locked up or the starter is fried. Dose it have fire at the plugs and compression. Thats the first things to test and if it passes that then its the fuel system, and that's the fuel pump and the carb. if it cranks and dont start look at the ...Oct 30, 2007. Messages. 1,575. Reaction score. 1,009. There is a fuel reservoir on the starboard side of the power head . ( follow the fuel lines ) I believe it has a drain, when this crappy fuel with ethanol sits and goes bad it accumulates in this reservoir. Drain the bad fuel, and pump the primer to re fill.

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Feb 17, 2023. #1. the outboard is a 2013 mercury 60 horse bigfoot, this is a 4 stroke EFI motor. the motor has no crank at all and no tilt or trim, im testing the tilt and trim strictly from the motor and not on the hull. everytime you try using the tilt either up or down the relay clicks, sometimes when you crank a relay clicks, i havent ...Jul 20, 2020 ... Outboard Fuel System Problems! Diagnosing a ... Running a 200 HP outboard on small 14 ft Jon Boat ... Mercury 60 HP - 50 HP Four Stroke Engine ...Absolutely no [malfunctions, problems, concerns, or peculiar behavior] at the higher [engine speed]. [Do readers have] any ideas [what is causing the 2005 Mercury 60-HP FOURSTROKE Bigfoot EFI outboard engine to run rough, stutter, quiver, quake, and shimmy]? This is a re-badged Yamaha. sosmerc: posted 05-29-2012 08:08 PM ET (US)Aug 15, 2020 · 290. 60K views 3 years ago. This video is about the Mercury 60 hp 4 Stroke. I review this Mercury Outboard Motor after owning it for 2 years. I have only had a couple of problems with the... Failed Relays: The power trim system may utilize relays to control the electrical current. A faulty relay can cause intermittent trim operation or a complete loss of trim movement. Replacing the defective relays is necessary. Blown Fuses: A blown fuse can cut off power to the trim motor, rendering it non-functional.One of the most common reasons for an HP wireless printer to keep going offline is the instability of the printer’s dynamic IP address, which results in frequent losses of communic...stuckey73 New Member. I have a 2008 4 stroke Mercury 60 bigfoot on pontoon boat. When I attempt to go full throttle, it will run fine for a few seconds and then start bogging down and/or lose power. It started doing this late last summer and I looked at it for a couple weekends and then gave up.Oct 7, 2012 · So while your bigfoot, opened up, makes say 32 mph burning 6 gph (and I'm just guessing at a top speed, but the difference will be correct), a non-bigfoot 60 would get you an extra 4'ish mph. Or, to put it another way that's easier to understand - bigfoot, 5.3 mpg - non-bigfoot 6 mpg in the same horsepower (12% difference in gas mileage but the ... ….

I have a 2001 Mercury 60 HP Bigfoot. It is new to me. The first time out this year the motor ran great for 25 minutes and then died. It would not restart. The next morning the motor started on the first try. The tachometer was not workng and the volt meter did not go above 12 volts even at WOT. I suspect the Volt Reg/Rect.Quicker is Better. Large-displacement dual overhead cam increases low-end power. Mercury FourStrokes consistently outperform the competition in 0-50 kph acceleration. Easy Shifting. The precision engineered shift system in every 40-60hp FourStroke delivers smooth, positive shifting for an improved driving experience. Slow but Steady.60ELPTO Bigfoot. This 60 horsepower Mercury outboard, manufactured in 1998, is a saltwater model. The engine weight is recorded at 238 lbs. This is a 3 cylinder model. The displacement for the pistons is 59. The bore for this outboard is 2.99 inches and the stroke is 2.80 inches. This engine has power steering and a electric-type starter. Your ...The Mercuty 60-HP BIGFOOT engine now has a new battery and a new flywheel. I also tested the two regulators I bought; both had defects. They failed the diode tests in the manual (shorted from yellow to red leads). I got two new regulators, one cheap one off of Amazon and then a proper one directly from CDI just in case.#1. I have recently purchased a 2007 Mercury 60 hp 4-stroke EFI, and it is unable to get over 4000rpm - although out of gear it can easily get to 6000. I know that it …Mercury Mariner Outboard Forum . 2013 ... . 2013 Mercury 60 hp 4 stroke alarm/possible overheating. Thread starter mikebnsd; Start date Apr 9, 2019; M. mikebnsd New member. Apr 9, 2019 #1 Hi Y'all. Mike here. I bought my boat ... A friend and I launched early in a tournament and went up river for about 10 miles with no issues.Report a problem with an order ... MERCURY 60HP Bigfoot Outboard REMIX Decal Kit Pontoon Fishing Cowling GoVinylSolutions 4 out of 5 stars. Arrives soon! Get it by Apr 17-25 if you order today. ... Mercury 60 HP Two Stroke 1990-1991 outboard engine decals sticker set reproductionIs your HP printer displaying an “offline” status, even though it is turned on? This can be a frustrating issue, especially when you need to print important documents. However, the...I have a Mercury 60 hp 2011, ... The liner separating in my fuel line was a problem with my Mercury 25hp engine. Reply. Pingback: 9 Common Reasons Why an Outboard Dies at Idle – WaterCraft 101. ZvonimirS_74 says: May 6, 2022 at 8:25 am. have a verada 150 from 2007. Mercury 60 hp bigfoot problems, So while your bigfoot, opened up, makes say 32 mph burning 6 gph (and I'm just guessing at a top speed, but the difference will be correct), a non-bigfoot 60 would get you an extra 4'ish mph. Or, to put it another way that's easier to understand - bigfoot, 5.3 mpg - non-bigfoot 6 mpg in the same horsepower (12% difference in gas mileage but …, Setting up a wireless printer can be a convenient and efficient way to print documents from multiple devices. However, like any technology, there can be hiccups along the way. One ..., Report a problem with an order ... MERCURY 60HP Bigfoot Outboard REMIX Decal Kit Pontoon Fishing Cowling GoVinylSolutions 4 out of 5 stars. Arrives soon! Get it by Apr 17-25 if you order today. ... Mercury 60 HP Two Stroke 1990-1991 outboard engine decals sticker set reproduction, Re: 60HP 2 stroke Mercury Bigfoot choke problem Thank you for your reply! The bulb was primed and fules was flowing through the line. he checked that first, actully removed the quick connect on the fuel line (engine side) and direct hooked the line to the motor before he noticed the enricher issue., While on vacation two years ago I had the same problem with a Mercury 60-HP FOURSTROKE [made c.2006]. I took it to a nearby Mercury dealer; they replaced one coil. That fixed the problem immediately. I called Mercury and they replaced the three remaining coils even though my six-year warranty had expired by a month., Hopefully, we can get you back on the water quickly. Your question was - I have 60 hp 4 stroke efi Mercury big foot, after about 10-15 min engine starts to stutter at 5000 down to 2500 then up then down eventually slows to 3000? Answer - I would be happy to help you with that. The engines need 3 things to run properly., 823989. BRACKET, Oil Tank (1 required per assembly) 823989 - Bracket [ More info ] $27.75. Available to Order: Usually ships within 10 days. Revise Search: All Models > 60 HP Bigfoot (3 Cylinder) > 0G760300 - 0T979999 (USA) > Starter Motor. Previous., stuckey73 New Member. I have a 2008 4 stroke Mercury 60 bigfoot on pontoon boat. When I attempt to go full throttle, it will run fine for a few seconds and then start bogging down and/or lose power. It started doing this late last summer and I looked at it for a couple weekends and then gave up., The Mercuty 60-HP BIGFOOT engine now has a new battery and a new flywheel. I also tested the two regulators I bought; both had defects. They failed the diode tests in the manual (shorted from yellow to red leads). I got two new regulators, one cheap one off of Amazon and then a proper one directly from CDI just in case., I have a 2017 60 HP Mercury that I bought new this past summer. After it stayed in the shop most of the summer due to various issues (electrical, thermostat, a whole different story), I'm probably a little OCD about how it now operates. I put a VesselView module on it where I could monitor how it was operating, if for nothing else, a little ..., Having an HP printer can be a great asset for any home or office. But like any other technology, it can sometimes experience problems. Fortunately, there are professional support s..., If you had to replace one part it would be this. It is part 881070 for about $69.00. It is located on top of the throttle body and fairly easy to replace. Otherwise, I would have to advise you to have an experienced and certified Mercury tech check over the motor with his test equipment. Kenny., A helpful video for maintaining your 40-60 FourStroke Engine. 40-60 FourStroke Engine Maintenance - Changing Fuel Filter 40-60 FourStroke Engine Maintenance - Changing Gear Lube , I have a 2001 Mercury 60 HP Bigfoot. It is new to me. The first time out this year the motor ran great for 25 minutes and then died. It would not restart. The next morning the motor started on the first try. The tachometer was not workng and the volt meter did not go above 12 volts even at WOT. I suspect the Volt Reg/Rect., Aug 10, 2018 ... From one day to the next my Mercury ... FIXED my rough Idle + stall problem 60HP EFI Mercury Outboard 2005 Four stroke engine! ... 2003 Yamaha 90 HP ..., This was tough video to make. My Bass Tracker with a 60 hp Mercury 4 stroke outboard motor is having a major issue. I do solve one problem with the ole 60 hp... , Apr 26, 2023 ... Check me out on FB @ Outboard Madness. I post my work every day on there with pictures, descriptions of everything, and videos., Jul 2, 2009 · May 2, 2003. Messages. 6,027. Jul 4, 2009. #5. Re: Mercury 50 hp bigfoot with idling / running issues. The id plate is external on the transom bracket. You cannot pull the fault codes without a merc scanner. The control box warning buzzer will tell you if a fault is logged via a series of beeps. , 2001 Mercury 60 HP. 60ELPTO Bigfoot Classic. This 2001, 60 hp Mercury is made for saltwater. This outboard engine weighs approximately 238 pounds. It has 3 cylinders. The pistons have a 59 displacement. The bore width is 2.99" and the stroke length is 2.80". This model has a electric starter and power steering. Your engine's RPM range is ..., 823989. BRACKET, Oil Tank (1 required per assembly) 823989 - Bracket [ More info ] $27.75. Available to Order: Usually ships within 10 days. Revise Search: All Models > 60 HP Bigfoot (3 Cylinder) > 0G760300 - 0T979999 (USA) > Starter Motor. Previous., Messages. 2. Aug 20, 2007. #1. I have a three month old Mercury 60 hp 4 stroke Bigfoot engine. At low revs it idles irratically. I have had it services (it only has 33 hrs on the clock) as well as computer diagnosed with no results. Some of the agents even suggested that the engine should miss like this and that; "that is what fourstrokes do"!!!!, In a nutshell, when I power my engine over 4900 RPMs, I frequently hear the infamous 6 beeps from the guardian system. The engine doesn’t lose power or performance when this happens. This started late last year so I asked my Mercury service technician to see if they could fix it when I had it in for winterization., The Mercuty 60-HP BIGFOOT engine now has a new battery and a new flywheel. I also tested the two regulators I bought; both had defects. They failed the diode tests in the manual (shorted from yellow to red leads). I got two new regulators, one cheap one off of Amazon and then a proper one directly from CDI just in case., At the bottom of the tank is a drain. Drain the vst tank. Refill with fresh fuel via the primer bulb, drain and repeat until the fuel runs clear. Get some of Mercury's Quickleen add to the fuel tank following label directions. Then mix some Quickleen and fuel at a 1part Quickleen to 4 parts fuel mixture put this in the VST tank., #1. A couple of months ago I bought a Suntracker pontoon boat with a 2006 Mercury Bigfoot 60 hp. The previous owner said that it didn?t run well and that he …, Sep 27, 2005 · 6. Oct 2, 2005. #8. Re: Mercury 60 HP Two Stroke Overheating: Hi Andy, tried backflushing the engine, water came through the jacket, to the exhaust, thermostat and bottom pick up tubes straight away. I am sure its not a blocgage I have. Tried the engine on muffs, got a strong tell tale. , Hopefully, we can get you back on the water quickly. Your question was - I have 60 hp 4 stroke efi Mercury big foot, after about 10-15 min engine starts to stutter at 5000 down to 2500 then up then down eventually slows to 3000? Answer - I would be happy to help you with that. The engines need 3 things to run properly. , Failed Relays: The power trim system may utilize relays to control the electrical current. A faulty relay can cause intermittent trim operation or a complete loss of trim movement. Replacing the defective relays is necessary. Blown Fuses: A blown fuse can cut off power to the trim motor, rendering it non-functional., Re: 60HP 2 stroke Mercury Bigfoot choke problem Thank you for your reply! The bulb was primed and fules was flowing through the line. he checked that first, actully removed the quick connect on the fuel line (engine side) and direct hooked the line to the motor before he noticed the enricher issue., Messages. 5. May 17, 2009. #5. Re: Alarm on Mercury 60 hp efi 06. I have an 2004 60HP four stroke Merc and the same thing happened; the water temperature guage was indicating temperatures all over the place. Replaced the water temp sensor and problem was fixed. I also noticed that the wiring harness contacts were corroded; you can try cleaning ..., FourStroke 40-60 hp. FourStroke 40-60 hp. It’s simple. You have places to go, and the Mercury 40 to 60hp FourStroke family of outboards is the easiest way to get ..., If you think you hit stumps now wait to you see what a big foot can hit! The shaft is longer so that the prop runs deeper in the water. The gear ratio is different also, …, Remember, much of the problem with water in the lower unit happens when a warm lower unit hits cold water. This causes a pretty big vacuum on the inside of the lower unit, trying to suck water into the lower unit to equalize the vacuum. You have seals on both ends of the lower unit. i.e. prop shaft, crank shaft, and water pump.