I had the same problem you talk about , started fine ran good at idle and would open up fine with no load. If you strike out there keep in mind that a weak spark can fail to fire under max load but can work fine at lower combustion chamber pressures. Does this sound correct?. com motor bogs down at full throttle Page: 1 - iboats. Overheating and spark knock or ping - See O2 sensor diagnostics - downstream O2 sensor; V10 unexplained coolant loss - Porous head castings allow coolant to seep into combustion chambers. I had my boat de-winterized, oil, filters and impleller changed last month, took it out twice this year and it ran fine. I finally got out on the water last weekend but I couldn't get it to go. The next day I started to experience the same problem, she would be WOT then bog down for a few seconds and then run normally. This chart assumes you have the adequate testing equipment to diagnose ignition problems. When this happened I backed off the throttle and got it back up to 4500 rpms where it ran smooth again. 16 posts Jun 23, 2011 1984 Johnson 70 idles but won't go 30 posts Jun 1, 2011 Johnson 70 hp no power under load Update 27 posts Oct 30, 2006 More results from www. If I gave her a little more and got up near 5000 rpms the motor would bog down and start to sputter. com FREE DELIVERY possible on eligible purchases. Could not re-produce this problem on the driveway. The next time out it will bog down and die when you are at full throttle for at least 15-20 seconds. I took two jets out and soaked them while out. As the engine started to bog down, I noticed the motor went down by itself and I could not tilt the motor up. This ignition system produces very high voltages and due care and caution must be practiced in working with it. The readings should be within 11/2 volts of each other, i. It started out a love/hate thing. as throttle is advanced the timer base moves advancing your timing. this is connected to the throttle by linkage. My guess is that my prop pitch is too high for this load. It's holding up well. At first this was very intermittent , then became more regular. even up to 2500RPM without issues. Engine at 4800usd Used Evinrude 9. My friend left 2 new carbs under. Up seems fine. Now the thing is if i keep pushing the choke it will rev up to about 5000 and seem to run somewhat normally. I agree with fish bring someone who knows boats. 12 Reasons a 2 Stroke Cycle Engine Loses Power/Won't Start/Cuts Out/Bog Down/Fix your Own/Save. I've got enough experience tearing down carbs to not be intimidated by the task, but that doesn't mean I want to do it if I don't have to. Engine runs great but Bogs Down New Topic power problems under load Re: Lack of power no rpm over 3000rpm When you can bog down a 350 and the engine rev's. carbs, gearcase, powerhead, etc) click on what youre looking for and. Okay well this question isnt for my TE450, but instead for my 1996 Yamaha Kodiak 4x4 ATV 400cc. The thing some people don't understand, and should be in big capital letters on a huge sign at the top of every boat ramp. The gummy fuel can also. I tried to trim the motor and it worked, I throttle again and the motor went down and. I replaced the part myself for $400 so hopefully it is that and not a more expensive powerpack. Owners manual shows how to clean it. Motor should be propped to 5850 with a light load, even a little higher. We have had a scissor rig, dog, decoys and 3 guys in it. Refueled with 91 octane and no ethonal on the lake. You will need to double check this needle setting by riding the bike under track conditions to confirm that there is no bogging or sputtering under most conditions. Check out the images below, courtesy of NGK Spark Plugs, and get ready to do a little light reading the next time you pull your spark plu. My 1996 GTX will run great for a short time then bog down at WOT. Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /home/storage/f/c1/ca/amazoncopy/public_html/jzg6u/93fr. She only has about 250 hours on her. At full throttle it was doing between 5 and 7 knotts! I switched the outboard off then restarted. Also the Idle adjustment screw is missing, maybe it is letting in some air through the hole? Will try to find one at the junk yard. Your evinrude engine bogs down when accelerating? to the motor. An exhaust back-pressure test can be done to see if the exhaust is restricted. No tach, so I don't know what the actual RPM is, but it sounds a little low. When it cools down, things are back to normal -- For A While-- Once it is running, it may stay running unless it is slowed down considerable or stopped. *Craftsman snowblower would not run full throttle without bogging down. Buy Sea-Doo OEM PWC Fuel Filter 275500088: Fuel Filters - Amazon. Owners manual shows how to clean it. Re: Outboard bogging down under load For a diagram for your carbs or any other repair you might have go to www. Things were looking up: I replaced the spark plug, cleaned out the exhaust, adjusted the idle / fuel screws, and even replaced the brakes (I can stop now!). Motor starts and idles great, runs like a top at high speedsbut I have intermittent issue with bogging down when attempting to increase throttle when in gear. Verified timing ok. When bogging down it reaches ~3500 max rpm. ice fishing sled idea So I am thinkin about putting a set of snow skis on my sled and putting about 6 or 8 inches between skis and sled. Dalt1, thanks for the quick reply I have not use the boat in the evening much this summer but i was pretty certain that when I turned on the nav lights and interior lights from the touch screen and hit the night view. In neutral, it will spool up no problem. Occasionally a little piece of something gets into the carburator and limits the flow of fuel to the jet. Can not get a tune that will get me any kind of throttle under load. Hydraulics are good. If the engine seems to bog down under load that would be an indication of a restricted exhaust. It doesn't do this all the time, maybe only half-time. A dirty fuel filter may restrict the fuel system flow, or at least make it inconsistent, which can cause the vehicle to experience hard starting. This type of test allows you to see what the A/F mixture is under real world driving conditions. Other areas where you could check is your vent. A Primer on Primers Proper Installation of Primer Bulbs in Fuel Lines Purpose of the Primer Unlike your automobile engine, which typically has an electrical fuel pump located in the fuel tank itself that delivers fuel under pressure to the engine, most outboard motors have only a simple diaphragm fuel pump that operates from engine vacuum. (heavy load/ motor angle) Brought it back to same mechanic was told I had water in the bowls. The carbs were rebuilt last year and it has done this ever since. i would get a can of seafoam and pour the whole can into your gas tank and run the motor in the can. I was able to get the motor down by doing the manual process, loosening screw and retightening it after it went down. Anything in-between in gear idle speed and about 7mph and I have to continually bump the choke to keep it going (like if I want to troll between 3-7mph, I have to continue to bump the electric choke to keep it from bogging and cutting off) it seems to be just when I put it under load is when I have the problem. Mud wasps are commonly the culprit, in this situation. The gummy fuel can also. I agree with fish bring someone who knows boats. lean is a very important diagnostic determination that can help send you down the correct path to a solution. Like the title says, 1999 50 HP Merc 2-stroke losing power at wide open throttle. I will also look into the link-n-sync. In gear it will run at around 2000 rpm, and occasionally rev up to 3-4000 rpm for a sec, and die back down to 2k. I had a Coleman 3500 watt that lasted 15 years but gave up the ghost after Katrina. There may not be any visible signs of wear and tear immediately, but inspect the underside where the coil sits. as throttle is advanced the timer base moves advancing your timing. If that driver coil (under the flywheel) starts to fail, is cracked, or starting to melt down, or whatever, there is a possibility that it would also operate when cold, but fail by shorting out when heated up by the running of the motor. all three times it started right back up with no problem. The pump sounds like it may have failed, or may have failed prematurely due to incorrect installation. 99 pitch prop) on any boat from a dingy up unless in neutral. Engine sporadically sputtering/hesitating/chugging under accelration and/or uphill I did a tuneup (plugs, wires, coil, cap, & rotor) about 6 weeks ago. I took two jets out and soaked them while out. How can I tell if the relay is bad for the down and how do I tell which relay is for the down side?. Overheating while towing or hauling a load. Now the thing is if i keep pushing the choke it will rev up to about 5000 and seem to run somewhat normally. Occasionally a little piece of something gets into the carburator and limits the flow of fuel to the jet. Dalt1, thanks for the quick reply I have not use the boat in the evening much this summer but i was pretty certain that when I turned on the nav lights and interior lights from the touch screen and hit the night view. which is great i`m keeping them all in mind as i go along. If the engine seems to bog down under load that would be an indication of a restricted exhaust. Gearing can also be a significant factor. Even after the engine has run long enough to become warm, the idle speed does not come down to normal but continues to idle at a fast pace. The gummy fuel can also. at idle with no advance. First, let's pinpoint exactly what's going on. Maybe a higher tone to it?. twice on take off and once at WOT after about 20 mins running good. And if at all possible take on a test run before you buy. I loved the motor when it. It will just bog down and may take awhile to get going again. If your engine bogs down under a full load, your muffler screen (spark arrestor) may be clogged and not allowing the engine to breathe properly. But I'm on the water usually 1-2 times per week so it was worth it to me. The vent line has a check valve in-line and an air filter to keep dirt out. Motor problem early 80's 20hp mercury to push a load. What could be wrong?. I tried to trim the motor and it worked, I throttle again and the motor went down and. I would be worried of the motor freezing in your neck of the woods. I can idle around town without too much issue. but I do know what I am doing when it comes to re-building and tuning small engines, mainly two strokes. Any more throttle, and it gains no more RPM, and after a certain point, (when I give it full throttle) it actually bogs down and loses some RPM. Suzuki 1997 DT25 will not run under load I purchase a 1997 issues but sometimes it will bog down while I'm cruising along I then bring the throttle back. The following information is presented for the use of MASTERTECH'S customers as a courtesy by CDI Electronics. Special order Turbo (USA) 3 blade stainless steel propellers in 13-1/4" diameter x 13 pitch. Hydraulics are good. The minibike I had was a 4hp, and handled the load awesomely. We tried to get home as best as we can but did hit shallow water. ice fishing sled idea So I am thinkin about putting a set of snow skis on my sled and putting about 6 or 8 inches between skis and sled. 90 Hp Mercury won't accelerate when an outboard slacks off or dies under a load, it's the fuel system or coils but seeing how your motor has been opened up a few. Evinrude 25 horsepower outboard prop slips while under a load. Yamaha outboard bogs down under load. Mud wasps are commonly the culprit, in this situation. However do not just replace them because they are oozing black tar like goo. The motor would run fine without any load but once I engaged the prop in water the engine would bog down and die. Moving the load forward will help in most cases. If all dives into their motors, I'd like to hear the end results as well. Evinrude carburetor adjustments should be made with the motor on the boat and underway. at idle with no advance. If I push it much more than that it starts to bog down. Now I know this same boat would have no issues getting on plane with my '97 Johnson 15hp 2-stroke, but this 10yr newer 25hp EFI merc could not get my buddy and I on plane now matter what we did. then go back. Have a great summer boating! -Mark. An exhaust back-pressure test can be done to see if the exhaust is restricted. Idles slightly rough at times under load. It will go up but will not go down when I hit the down button. Removed and exhaust vent plug from the 24 pitch tempest prop, which has helped considerable, however, it does seem to bog down for a brief second when i first hammer down, like its under load, once it does break plane and i trim accordingly after it runs like a banchee, and i mean runs great, but im noticing a very strong exhaust smell. If I gave her a little more and got up near 5000 rpms the motor would bog down and start to sputter. if I tilt the motor up to where the prop is barely in the water it will throttle up more, but it just pushes the tilt back down and the problem is the same. Tried choke manual and with key under load and engine bogs down further. What makes an outboard boat motor run great and rev up in idle and then bog down and sometimes die when-? situation and/or under a load. I went to full throttle and trimmed the motor to plane the boat. made sure needle was falling when float comes down 2. Buy Sea-Doo OEM PWC Fuel Filter 275500088: Fuel Filters - Amazon. I plan to pull the plugs tomorrow and see what they look like. It's amazing how often people forget about this vent, and it turns out to be closed. I will say that the bogging sounds different somehow from what it sounds like if it is flooding. Every time I go to power load the boat on the trailer; the motor will bog down and die. Just no power under load. The motor will idle on a hose or at the dock. I really don't believe that it helped the carbon stiuation at all. But I'm on the water usually 1-2 times per week so it was worth it to me. Tried moving the timing advance under load and it goes no higher. Other symptoms of a bad fuel filter fall under the category of engine performance issues. com FREE DELIVERY possible on eligible purchases. If your outboard engine is sputtering at any speed, idle or full throttle, it could be the result of several common malfunctions. I would be lying if I said we didn't feel under powered. Does sound like the mixture is too lean. And if at all possible take on a test run before you buy. So, I hooked it up the hose and it ran fine in the driveway, but bogs down when the prop is under load when I'm on the lake. It would run fine on the hose, crank up and idle fine after launching but under load it would bog down. I took two jets out and soaked them while out. Yamaha outboard bogs down under load. Hey guys! Been awhile since ive been on the boards, but a friend of mine messaged me, he is having an issue with his 115 yami, he said:95 ranger with this Yamaha115 v4 it will not get itself on plane won't go over about 5 mph. Buy the only U. is turned on to adjust for the. I noticed that the wire from the temperature sensor had come detached from the sensor at some point. Although the Evinrude is a 2-stroke, it is fuel injected, uses little oil and fuel, better emissions than ANY 4-stroke. The power head was recently rebuilt and I am breaking it in. The motor would not die, it would just bog down and lose the power. Are you taking into account the weight of furniture, passengers, and other gear. When we would get a phone call at the marina, "My boat won't start" here's what we'd typically say:. At first this was very intermittent , then became more regular. You really notice it when you come to a stop, after which you have to push hard on the brake pedal to keep the car from moving. This is due to the fact that colder air, which is more dense than warm air, lowers temperatures in engine cylinders at the end of the compression stroke. When bogging down it reaches ~3500 max rpm. My 1996 GTX will run great for a short time then bog down at WOT. You may consider raising the ball to avoid bottoming out, it will reduce the weight slightly. Engine spark plugs are responsible for igniting an engine's air-fuel mixture, a process that creates engine power. As I needed to get back I reved the engine and quickly put it into gear full throttle. and if you. Not looking to do any guided tours. A road test using a portable infrared exhaust gas analyzer and/or a wideband oxygen sensor will allow you to check the cruise speed A/F mixture, followed by a check of the power A/F mixture under load. crowleymarine. I've run for more than 30 min. Tried choke manual and with key under load and engine bogs down further. YOU GOT QUESTIONS WEVE GOT ANSWERS, BUT DONT SAY WE DIDNT WARN YOU: Dirtbike : If you choose to email a question to this forum, then you must conduct yourself accordingly. His 25 hp will not let you run it pass, lets say about half way. " We dealt primarily in small runabouts, which means mostly outboard, I/O, or inboard (including v-drive) boats under 25 feet. (heavy load/ motor angle) Brought it back to same mechanic was told I had water in the bowls. carbs, gearcase, powerhead, etc) click on what youre looking for and. I took it out again today, at first it worked but then again when I put it into gear it stopped. featureCounts. Open up the screw, and the engine should start running just fine. could be a minor air problemmine was doing close to the same thing and the restriction was in the primer bulb. The other odd thing is that when I called the repair shop, they said it was running good when they tested it. When I started it to head in to the dock, it bogged down under load. Last couple times out it has started up fine but will bog down at speed and usually stall. I have been working on an old jon boat for a while now. marineengine. I guess it should have been rather obvious on my part to check simple things like the fuel filter and fuel bulb/line first before assuming the worst. (Neither did water injection. You can hear the. The check valve lets air into the bellows when the. My guess is that my prop pitch is too high for this load. They did this without informing the general public. As the engine started to bog down, I noticed the motor went down by itself and I could not tilt the motor up. Mercury 50 1987 bogs down when full @ full throttle 13 posts Sep 12, 2013 Motor Runs great bogs down under load. as throttle is advanced the timer base moves advancing your timing. , if one Wire reads 20 volts - the other has to read between 18 1/2 and 21 1/2 volts. The next time out it will bog down and die when you are at full throttle for at least 15-20 seconds. It runs fine, but a few seconds after giving it enough throttle to get on a plane, it bogs down and stalls. Finally, took it to a mechanic that put it in a big giant tub of water and strapped it down, where he could simulate being on the water. I have changed and indexed new plugs. Typical problems include hard starting, rough running, a need to adjust the carburetor during use to keep the engine from stalling, a need to rev the engine to ke. And if at all possible take on a test run before you buy. Top speed seems to be about 7 knots, this seems under powered to me but I have no other reference to compare it to. If you're looking for that top end, you may want a higher pitch. To restore iTrim functionality return the engine to idle rpm and engine to a full down position. it seems to me like the impeller is putting too much of a load on the engine when it is fully under-water or something like that. plastic tank, but the engine stopped and I couldn't get it. It was tuned up a beginning of last season at a marine shop. We're not talking about a knocking engine or one that idles rough or stalls. If the above doesn't fix it , it could be the diaphram in the fuel pump. Tried choke manual and with key under load and engine bogs down further. Motor bogs down under load. I replaced the fuel line, cleaned the air filter, precisely measured a 16:1 mix, rebuilt the carb, and it seemed to run better for a half day and then started boggin down again. any ideas?. crowleymarine. but I do know what I am doing when it comes to re-building and tuning small engines, mainly two strokes. Part out, or sell complete. Occasionally a little piece of something gets into the carburator and limits the flow of fuel to the jet. any ideas?. Stalling under load or higher rpm is indicative of a lack of fuel. i think ur right the carbs need to be torn apart and soaked overnight, then blown thru all the passages to make sure there clear. Like any other technical unit, trolling motors are complicated devices. Outboard Marine Motor bogs down when giving it throttle it too would bog down when I gave it gas. I think the one thing you should carry onboard is an inline spark tester. Redistributing weight or passengers towards the rear, but not so much as to bog down the stern can help some by getting the front of the logs up a little to reduce any plowing might help. I'm not a certified mechanic in the least. But I'm on the water usually 1-2 times per week so it was worth it to me. In the water, in gear, I get a similar hesitation but it won't get above maybe 1200-1400 rpm before bogging down and stalling. 90 Hp Mercury won't accelerate when an outboard slacks off or dies under a load, it's the fuel system or coils but seeing how your motor has been opened up a few. If you strike out there keep in mind that a weak spark can fail to fire under max load but can work fine at lower combustion chamber pressures. Even after the engine has run long enough to become warm, the idle speed does not come down to normal but continues to idle at a fast pace. Your fuel & oil consumption will increase. any ideas?. What Causes an Outboard Engine to Stall When Giving it More Gas? not enough fuel are lean and tend to reduce the amount of power available under load and can. Mercury, Yamaha, Evinrude, Johnson. If you're looking for that top end, you may want a higher pitch. The MAP sensor senses intake vacuum, which the PCM uses to estimate load so it can adjust the air/fuel mixture accordingly. 1979 evinrude 6 hp cylinder head bolt torque, 1998 johnson 60 hp top spark plug wet but clean, evinrude 6 only running half power, evinrude 6hp to 8hp, johnson 6 hp outboard loss of power, johnson 6hp cylinder head torque, johnson 6hp head gasket torque specs, low compression on 6hp evinrude. About 5-6 years ago, I found a good a late 70's model Evinrude 15 hp for $1200 and I feel that is the perfect match for the 14 jon. It would run fine on the hose, crank up and idle fine after launching but under load it would bog down. It's holding up well. Any more throttle, and it gains no more RPM, and after a certain point, (when I give it full throttle) it actually bogs down and loses some RPM. New Boat Motors at Discount Prices. A road test using a portable infrared exhaust gas analyzer and/or a wideband oxygen sensor will allow you to check the cruise speed A/F mixture, followed by a check of the power A/F mixture under load. Last couple times out it has started up fine but will bog down at speed and usually stall. 2009 Evinrude ETec 90 HP Tiller Model # E90DSLSEB - Serial # 05244043 124 HOURS. Buy Sea-Doo OEM PWC Fuel Filter 275500088: Fuel Filters - Amazon. i`m going to get some kind of cleaner today for the carbs in case my cleaning by hand has not been good enough and maybe a manual to put my mind at rest that i have put the new diaphrams and gaskets on the right way although my troubles started. If you give it more throttle it bog's down worse. Had it on the water for the first time today. ice fishing sled idea So I am thinkin about putting a set of snow skis on my sled and putting about 6 or 8 inches between skis and sled. It will break down your engine by part (I. 2 stroke idles all day but won't rev !! Share Thread. I hauled it back and forth to the shop that summer more than I hauled it to the lake. and if you. The bulb stays firm after I get it running, but I might still have to look into the fuel lines. What makes an outboard boat motor run great and rev up in idle and then bog down and sometimes die when-? situation and/or under a load. How to fix Out board bogging down Tyler Roberts Yesterday my Evinrude Outboard ran like crap. Outboard Motors For Sale. Motor should be propped to 5850 with a light load, even a little higher. Around the Modern Boating Office, Sugar Sand boat tests usually cause a bit of a stir as eager journos scramble for a position on the test team. Refueled with 91 octane and no ethonal on the lake. There may not be any visible signs of wear and tear immediately, but inspect the underside where the coil sits. Yet under load, the engine could bog, backfire, and run like poo. (Neither did water injection. So, I hooked it up the hose and it ran fine in the driveway, but bogs down when the prop is under load when I'm on the lake. one way to test it is to put boat in the water. WARNING: Do not stand in front of vehicle while performing this test. So My outboard is. The thing some people don't understand, and should be in big capital letters on a huge sign at the top of every boat ramp. Usually the P0420 and P0430 are not something that would cause a running condition or vibration. When you are chasing carb gremlins, rich vs. Around the Modern Boating Office, Sugar Sand boat tests usually cause a bit of a stir as eager journos scramble for a position on the test team. 16 posts Jun 23, 2011 1984 Johnson 70 idles but won't go 30 posts Jun 1, 2011 Johnson 70 hp no power under load Update 27 posts Oct 30, 2006 More results from www. In light of the ethanol issue previous posters are probably right about the problem being fuel related. plastic tank, but the engine stopped and I couldn't get it. Engine runs great but Bogs Down New Topic power problems under load Re: Lack of power no rpm over 3000rpm When you can bog down a 350 and the engine rev's. When I pull off slow, it pulls off fine but as soon as I put throttle on it bogs down and cuts out. 00 Contact: 082 699 3918 Call or Whatsapp for any further inquiries. IMPORTANT: Use of the trim/tilt switch to manually adjust the outboard trim angle will temporarily deactivate iTrim. My guess is that my prop pitch is too high for this load. if they are too lean, they will over-power themselves, and 90% of the time they explode violently. I have a 40 hp /force motor with power trim and tilt. If you're looking for that top end, you may want a higher pitch. Right on schedule after 3 years, it is now acting up. I've got use of a 15hp Evinrude from the early/mid '80s. plastic tank, but the engine stopped and I couldn't get it. The mower dies. [The Evinrude 90-HP outboard] starts and runs great but under load she bogs and stalls. Around the Modern Boating Office, Sugar Sand boat tests usually cause a bit of a stir as eager journos scramble for a position on the test team. As far as my book and information, that's all I've used in the past with great results. Motor bogs down under load. The carbs were rebuilt last year and it has done this ever since. Any more throttle, and it gains no more RPM, and after a certain point, (when I give it full throttle) it actually bogs down and loses some RPM. Buy Sea-Doo OEM PWC Fuel Filter 275500088: Fuel Filters - Amazon. Here's the problem I just started experiencing. Maybe a higher tone to it?. featureCounts. Re: Outboard bogging down under load For a diagram for your carbs or any other repair you might have go to www. I have been working on an old jon boat for a while now. made sure needle was falling when float comes down 2. Then it will start running ok for awhile, then bog down again (and again). Check the owner's manual, the manufacturer's website, or a dealer can look it up for you. As the engine started to bog down, I noticed the motor went down by itself and I could not tilt the motor up. The Parker is pretty similar to what your set up will be. Removed and exhaust vent plug from the 24 pitch tempest prop, which has helped considerable, however, it does seem to bog down for a brief second when i first hammer down, like its under load, once it does break plane and i trim accordingly after it runs like a banchee, and i mean runs great, but im noticing a very strong exhaust smell. BIG RED ONE – Sugar Sand Super Sport Tango Issue: October 2006 With 240hp EFI V6 under her belt, she's a rocket shed on rails. This colder air leads to reduced combustion of. Show Models. Re: Outboard bogging down under load Fred I had the same problem under load ,ran fine in driveway , on river it bogged down and no power. If I gave her a little more and got up near 5000 rpms the motor would bog down and start to sputter. Done Filter Under Console Drawer ({counts. 9 would top at maybe 15 mph when I fished alone, but would slow down considerably as you added passenger weight. hood cowl is in mint condition. In light of the ethanol issue previous posters are probably right about the problem being fuel related. Engine runs great but Bogs Down New Topic power problems under load Re: Lack of power no rpm over 3000rpm When you can bog down a 350 and the engine rev's. [I] have rebuilt carburetors, put on new fuel lines and filter, cleaned [fuel] tank, added new gasoline, rebuilt the starter, ran engine tuner, and then put new spark plugs in, and [I] am still having the same problem: the Evinrude 150-XP runs great [on] the hose [adapter] but, when [I] take it to the water and it is under a load, it will not. ) In fact I couldn't find anything that would clean out the carbon buildup. marineengine. com on the left hand side there is a tab that says parts catalog. (But I have a two year extension on my warranty) It started by bogging down intermittently which I shrugged off to a little dirt/water in the fuel. Mercury 50 1987 bogs down when full @ full throttle 13 posts Sep 12, 2013 Motor Runs great bogs down under load. great ideas- also check the voltage at idle- my efi was doing same thing, I changed the fuel lines and etc. Verified timing ok. A dirty fuel filter may restrict the fuel system flow, or at least make it inconsistent, which can cause the vehicle to experience hard starting. rev's easily and does not bog down like larger diameter propellers. I will attempt a concise history of my issue. Re: Outboard bogging down under load For a diagram for your carbs or any other repair you might have go to www. one of those 3 ( Cant remember which one ) turned on the underwater lights. pot is designed to slow down the closing of the throttle to prevent backfiring. I will also look into the link-n-sync. There may not be any visible signs of wear and tear immediately, but inspect the underside where the coil sits. Yes you guest it. Totally at a loss here. Have a great summer boating! -Mark. outboard bogs down under load. As sometimes happens with a "new" boat, it didn't take long before one of the engines — the starboard engine — began making a strange noise. I went to full throttle and trimmed the motor to plane the boat. This is more likely if the filter on the vehicle has never been changed.
xu, us, my, hf, yt, tc, pj, dt, hr, vk, zt, mf, wk, wp, fb, pi, lf, db, gp, ug, ad, nw,