Outboard bogging down under load

[95cajun]

Re: Outboard bogging down under load

Sorry been busy, I can take the carbs off and clean with gumout or a good carb cleaner. I judge them buy how bad they burn my hands I do recommend wearing gloves but get the good stuff. Use the red straw and blow them through the jets or any holes you can find. I don't have any diagrams. but I found that it is easier to pull the end of the throttle and shift cable than trying to mess with the clip that hold them to the air silencer cover. Get a ball end allen wrench and some metric wrenches of course. start by removing the top carb them work your way down. I leave the fuel lines hooked up but if its your first time there may be junk blocking one of the lines Mine has a tree with three outlets the elbow end on the bottom was blocked. I had little screens about the size of pencil eracers stuck on the brass inlet tube. I take it from other responces that this is not normal but if you have them that where the majority of the scale will be. pump the bulb to flush the lines out. keep pumping the bulb til the gas comes out clean. I replaced the primer bulb line (mine doesn't have the little plug thing on the motor it runs straight to the fuel pump) but check everything. I used the old hot rodder type fuel filter with the little plastic screens that can be replaced. they are easier to see through. I bet you will have to do it twice. the first time it will take you an hour or two the secound time it will take about half that. Mine had rubber gaskets and I wasn't sure if it would work so I didn't change the gaskets the first time. I figued I would have to take it to a mechanic. I have done this on a v4 85 horse now also. I'm getting pretty good at it. Just take som pictures of it as you go so you can remember how they go back together. I didn't have anything but screws to worry about loosing. I know this is getting long but do it on the engine you can turn the carbs over enough to get to the bowl screws. the linkage poped on and off just be gentle and pay attention. and remember we are here to help!

 

[bowhunter83]

Re: Outboard bogging down under load

For a diagram for your carbs or any other repair you might have go to www.crowleymarine.com on the left hand side there is a tab that says parts catalog. click there and enter your engine info. It will break down your engine by part (I.E. carbs, gearcase, powerhead, etc) click on what youre looking for and it will pop up a zoomable parts diagram with part names and prices. That goes for ANY make and model and year of engine. its definately something you wanna bookmark on your comp. Also go get yourself a Clymer's manual for your engine... it pays HUGE dividends if you plan to do any work yourself......that little 25 dollar book is worth its weight in gold. It also will give you parts diagrams,wiring diagrams and step by step instructions (with pictures) for anything you wanna do to that motor. Hope that helps. I use the crowley marine site a LOT, very handy. (and since it gives you part names you can walk into the parts store without sounding like an idiot by calling things doo-hickeys and wacha-call-its)

 

[fredcombs]

Re: Outboard bogging down under load

Got to take it to the lake today, still having problems. I checked spark, all was good there. neighbor wastn home so i could not get his compressions tester but am doing that tomorrow. Started great at home and of course idled fine on the muffs. Took it to lake, started it on trailer and had to really give it gas(in neutral) to get it to idle and keep it running. Motor is still bogging when i get it above about half throttle and then it just dies and then is a bear to start. So I am assuming a carb clean is in order since most of you have said that. Should that be my next step or is there anything else that i should check. Thanks to all of you for the excellent advice

 

[parrisw]

Re: Outboard bogging down under load

Got to take it to the lake today, still having problems. I checked spark, all was good there. neighbor wastn home so i could not get his compressions tester but am doing that tomorrow. Started great at home and of course idled fine on the muffs. Took it to lake, started it on trailer and had to really give it gas(in neutral) to get it to idle and keep it running. Motor is still bogging when i get it above about half throttle and then it just dies and then is a bear to start. So I am assuming a carb clean is in order since most of you have said that. Should that be my next step or is there anything else that i should check. Thanks to all of you for the excellent advice

What have you done to this point? Here is a quick and easy test. Get one of the portable small 20L outboard fuel tanks, get a new hose to go from that to the motor, now how does she run? If it runs good now, you know for sure your problem is in the fuel system leading to the engine, check the pickup screen in the tank, lines collapsing, bad filters? Do you have a good spin on water separating filter? If not, I highly recommend one!! Their cheap and good insurance, and it wont let any crap through to the engine.

 

[fredcombs]

Re: Outboard bogging down under load

did the portable tank test and did not help. I have replaced all fuel hoses to ethanol resistant. drained tank and made sure it was clean. put in fresh fuel, new inline fuel filter. checked spark which was good and i am checking compression tomorrow.

 

[parrisw]

Re: Outboard bogging down under load

Ok, well that rules out allot of potential problems. If compression is good, tear into the carbs.

 

[crherman]

Re: Outboard bogging down under load

going through the same problem myself right now on an '77 85hp. One things for sure, the newer the motor the better, but its still air, fuel, spark. Im thinking your getting great advice here. I pulled one of my carbs off today and inspected. It looks great but you cant see in those little holes. Im going to rebuild them both. I saw somewhere in the chats someone left a link to carb rebuild from Youtube. Just go on and search Johnson or Evenrude carb rebuilds and Im sure you find it. Good video, about 10 minutes long, about how long it take to rebuild. If you know the diff from an end wrench to a cresent wrench you can do it. One more thing I would recommend. When ever I get to tearing something down for the first time, I always take pictures. Thank the Lord for digital cameras. Good Luck. And I was just thinking: before you do anything check to make sure your fuel tank is venting. If its plugged or pinched your motor may run at idle ok but begin to pull a vacum at high rpms.

 

[95cajun]

Re: Outboard bogging down under load

I was scared to dive into the carbs at first. Just do it!! Lol it's really alot easier than it sounds. There are not alot of loose parts like in an auto carb the only real loose part is the float. Yeah it's like working on an import if you do it on the engine. Don't over complicate it. Just get in the boat, lay out your tools, have someone there with a camera to take pics of things you want to remember, and get er dun. If you run into problems I'm sure some one on here will sent you a pic of what it is supposed to look like. I think the clymer manual is a necessity.

 

[bowhunter83]

Re: Outboard bogging down under load

Are you sure its firing on all cyl? Try starting it up, and while its running, pull off the spark plug boots off each plug one at a time. If you take one off and the rpm's drop then that cyl should be firing normally. If you take one off and the rpm's dont drop, theres a prob with that cyl...it may have spark, but may not have air or fuel (or too much/too little of either one).....or if you pull one off and the motor dies completely,that may mean that you were only running on that one cyl and it was the only thing keeping your motor running.

 

[MNSouthwestfishing]

Re: Outboard bogging down under load

I also have a 1992 60hp and I have experienced similar symptoms. I am no expert it could very well be in the carbs, my problem was not. My issue was with the priming solenoid? I believe. I posted a couple of pictures showing the side of the motor and more specifically the red arrow you see in the middle of the picture. This actually adjusts something with the fuel delivery. You may want to try playing with this (just remember where you start from) or hopefully someone will chime in and tell us how turning that red arrow affects the motor. When I adjusted this all of my problems went away and took all of 10 seconds. Hopefully this helps.

 

[bowhunter83]

Re: Outboard bogging down under load

That little red arrow adjusts the flow of your primer. Pointed toward the boat opens it up all the way, pointed away from the boat shuts it off. It should be pointing toward your boat, or somewhere in that direction depending on how much fuel you want it to deliver

 

[fredcombs]

Re: Outboard bogging down under load

On the primer solenoid, should i turn it to where it is pointing towards the boat. As it stands now, the "arrow" is pointing back towards the motor. Could this be making the engine not get fuel. great info guys!

 

[MNSouthwestfishing]

Re: Outboard bogging down under load

I believe the red arrow should be pointing back towards the motor. In my case I believe I bumped it and it got out of position. My understanding of it is it really is only intended to be used if the electronic priming isn't working (functions as a manual override). I believe it only will turn 3/4 of the way around so as long as it is pointing back at the motor as my pictures show in my previous post you should be fine. If you haven't moved it you should be alright. The pictures I posted show how it is on my motor, it should be the same for yours. Maybe try adjusting it with the boat running and see if this changes the motor running. Hopefully this helps, I am no expert I just had the same symptoms you described.

Good Luck!!

 

[bowhunter83]

Re: Outboard bogging down under load

It should be pointing TOWARD the BOAT

 

[fredcombs]

Re: Outboard bogging down under load

Ok guys, got to do a compression test today all 3 cylinders were dead on 115. i did notive that the primer bulb has a very small leak around where the hose connects to the bulb. Obvioulsy this needs to be replaced, could this small leak be causing a bogging issue. Talked to a mechanic today and told him my issue and he said before doing a carb clean that i should spray some seafoam deep creep into the carbs and let it sit for a day or two, fire it up and it just may clear out some of the junk in the carb. anyoney have any thoughts on this. Thought that would be my last attempt before doing a full tear down of teh carb.

 

[klrbruce]

Re: Outboard bogging down under load

I'm betting on clogged high speed jet.(junk in carbs) As for enrichening solenoid and valve, red arrow points toward boat for normal electric starting, turn away from boat for emergency override and pull starting. If left in the override position it can cause extra rich/rough idle.

 

[fredcombs]

Re: Outboard bogging down under load

Ok a little confused here on the primer solenoid arm. As i have it now it is positioned paralled with the body of solenoid and inline with it so to speak. I have been told this is the correct position. Are you guys saying to rotate it 180 degrees so it faces away from the body of the solenoid?

 

[bktheking]

Re: Outboard bogging down under load

Ok a little confused here on the primer solenoid arm. As i have it now it is positioned paralled with the body of solenoid and inline with it so to speak. I have been told this is the correct position. Are you guys saying to rotate it 180 degrees so it faces away from the body of the solenoid?

Rotating it 180 would be priming.

 

[bowhunter83]

Re: Outboard bogging down under load

If yours is set up like the one in the picture above, that is the correct position. The Red valve is located on the rear of the primer, it should be pointing to the front of the primer. like I said if yours is set up like the one in the picture above, that is the correct position for normal use.

 

[95cajun]

Re: Outboard bogging down under load

you guys are killing me!! I have had two motors both evinrudes One a fresh rebuild 85 horse one 200 hp both boats had been sitting both boat started and ran perfect on the muffs. And I mean started, idled, reved up, took them to water they started backed off the trailer loaded the family idled past the no wake markers showered down on them they started raising up then fell flat. Hard to start afterwards barely got them back to the trailers. took them back yanked the carbs cleaned the fuel lines on the first on I put a new fuel pump spark plugs wires compression check two or three weeks and 200-300 bucks worth or parts. Finally did what the first guy told me. then did the same to the next boat. Before I took it off the trailer I tried to push the truck up the ramp it passes this test so I took it out. ran like a champ. I'm going to use the sea foam to decarb the 200 hp then sell it. take pictures of the motor and carbs, draw a sketch. take your time pull the carbs then spray the cleaner thru them. watch so that the cleaner doesn't spray back at your eyes. then take it to the water if your trailer allows load the boat agianst the trailer if it feels really strong and does'nt bog down go run the crap out of it. pour a can of sea foam in with a couple of gallons of gas then go have a blast and decarb at the same time.