2 different probs. or the same prob.?

[imported_ranger_6]

I have an 86 Johnson 65 hp. Had it on the muffs and cranked it over for the first time in a couple of weeks. Started on first try but noticed an ENORMOUS amount of white smoke coming out of the prop also saw a good amount of black oil coming out. I am assuming the smoke is burning oil is this normal? Also when I started it I had the choke lever up but as soon as I put it down the engine dies. It also has trouble starting with the choke lever up and sumerged in water. Are these 2 seperate problems or is the burning oil causing it not to run properly? Please explian in lamens terms to me casue I don't know anything about boat motors. Thanks<br /> Ranger_6

 

[rodbolt]

Re: 2 different probs. or the same prob.?

hello <br /> when was the last time it ran normally in the water under a load? and How old is the fuel ?<br /> good luck and keep posting

 

[Cricket Too]

Re: 2 different probs. or the same prob.?

ranger6......The outboard you have is a 2 stroke motor as are the majority of outboards. 2 stroke motors burn what is called premix, the gas and oil mix together and the mixture is burned, and provides lubrication as well. The smoke you are seeing is normal,it is burning oil. Hopefully it has a blueish tint to it, that's normal, rather than actually white, white is bad it means you are burning water. The black oil you see is most likely unburned oil dripping down. Which is common on outboards (2 strokes).<br /><br />The lever you are talking about is not a choke lever, it is a fast idle lever. The choke closes over the front of the carbs and is activated by pushing in on the key(you will hear a click in the engine), it is either on or off. The fast idle lever is meant to work in conjunction with the choke to get the motor started when cold. When the motor is running correctly you really shouldn't even have to use it.<br /><br />The reason it starts harder in the water is due to the backpressure on the motor when it is in the water, on the muffs there is no backpressure. When was the last time the carbs were cleaned and rebuilt? To me it sounds like you have a fuel starvation problem that is causing your motor to stall unless you use the fast idle. I would rebuild those carbs and you will probably see a huge difference. Don't run it too much until you do because those lean running carbs will destroy that motor very quickly and you'll have a useless hunk of metal on your hands. Also check all of the the fuel lines, fittings and filters, and make sure you are running some good fresh fuel. Might be a good idea to get a manual for your motor if you plan on doing work and learning. Good Luck and keep posting, people here will help you with alot of problems.

 

[walleyehed]

Re: 2 different probs. or the same prob.?

Agree with mmcpeck, the oil residual is normal, usually an indication of a lengthy idle...doesn't take long though.<br />I wonder about your linkage and throttle cam. Those 2 areas can cause simular problems such as yours. As stated above, this would be a good time to invest in a manual and study.<br />Also, when you run your engine, don't let it over-rev in neutral, as this can be dangerous.

 

[imported_ranger_6]

Re: 2 different probs. or the same prob.?

Thank you for such a quick and informative reply. I do have a few more questions. 1. How do I get a manual for an 86 motor. 2. What if it is white smoke and i'm burning water. 3. How much does it cost to rebuild my carbs? I will check all of my fuel lines and fittings because I did have a crack in one of the lines but I never checked the rest of them. Oh yeah, one more question. You said the reason it dies in water is back pressure but when it's on the muffs and I turn down the fast idle lever it still dies. I really should just get a manual. I am pretty mechanically inclined so I should be able to figure out but until then all of your answers are helping tremendously! Oh yeah, the fuel is brand new, put it in the tank no more than a week and a half ago along with that fuel stabilizer stuff. what ratio should I be mixing my oil and fuel. I am adding 16 oz. of oil right now to my 6 gallon gas tank which I think is 50:1 or 40:1 but is that right for my type of engine? whew! if this was a car engine or a motorcycle engine I'd be set but I guess I gotta start learning somewhere. -Ranger_6

 

[walleyehed]

Re: 2 different probs. or the same prob.?

16 ounces of oil to 6 gal. gas is correct (50:1).<br />The muff thing just doesn't work for setting idle, ya gotta be on the water for that.<br />The manuals are available right here on the home page, type in Outboard manuals in the search bar, and you will find it there for your engine.<br />p.s. before spending money on the carbs, try the timing advance (Idle) on the water first and see what happens.

 

[Solittle]

Re: 2 different probs. or the same prob.?

I am assuming that this motor is new to you. It is quite normal for these motors to emit a large cloud of smoke when they start and to have unburned oil come out from the prop/gearcase. Many if not most of these motors will smoke for a bit until they warm up and settle down. You may not have a problem at all. <br /><br />Can you put the boat in the water so as to start it and let it warm up? I wouldn't do anything to the carbs or mess with the timing just yet.<br /><br />If it is new to you you need to think about repalcing the water pump, new plugs and change the gear oil.<br /><br />First thing you should do is follow mmcpeck's advice & get a manual.

 

[imported_ranger_6]

Re: 2 different probs. or the same prob.?

Thank you everyone for all of your advice, you might have saved me a ton of money. This time of year is bad for motor repair cause Christmas is makin my wallet look mighty thin but I will let you all know how it turns out. Thanks again.<br /><br /> SSG Dean<br /> U.S. Army Ranger

 

[imported_ranger_6]

Re: 2 different probs. or the same prob.?

OK, I'm getting very frustrated. When I had the boat in the water it started right up then died after I pushed the fast Idle lever down, then it got to the point of when I tried starting it one more time before I took it out it wouldn't start. That's when I posted my first question. Now it's on the muffs again. I have changed my lower unit gear oil, new spark plugs gapped to 0.30 which I don't know if that's correct but that's what the old plugs were gapped at. Now the thing won't even start. What gives? This boat motor thing sucks. I'm at work now but when I get home I'm gonna check to make sure the plugs all have spark and I already checked the fuel lines and fittings so that's all I know to check. I thought when you put new stuff on a motor your supposed to make it run better but now the thing won't run at all so I just went backwards and spent money in the process !!!!