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1967 Johnson 9.5

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Daddy Cory

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I have a '67 Johnson 9.5hp outboard I'd like to get up and running. I just bought a brand new 9.9 Mercury, but after two failed repairs, I have returned it and gotten my money back. I am determined to get the Johnson going.

I bought a 14' boat and the '67 motor two years ago. Admittedly, I am new to boat motors, but I do have some experience operating them, and consider myself to have some common sense. I fired the motor up a few weeks ago in trash can full of water, and it seemed to run fine. I fired it up again tonight in the trash can. It was a bit difficult to start at first. After a few pulls, it started right up. I let it run a bit and shut it off. After that, it took no effort to start again. It runs great, until I try to throttle up. It almost instantly dies. The fuel flow through the line seems okay, but the bulb won't stay hard. My first course of action is to try a new fuel tank. I don't have a lot of confidence in the tank after I lifted it up to make a fresh mix and saw fuel on the concrete it was sitting on.

A few other things I noticed tonight that I was hoping to get some advice on. The water coming from the output was sporadic. It was constant, but not really a steady flow. I will check to make sure that nothing is clogging the water flow when I get it out tomorrow, but would that affect the motor running when I throttle up? I also noticed that water seemed to be coming from between the two sections of the gearcase housing. I don't remember seeing that in the past, but I could have not been paying attention. And third, there is A LOT of smoke, and a lot of oil floating on the water in the trash can.

Any advise would be great. Trying to avoid shelling out the money for a new motor if I can get this one running.

Thank you in advance.
 
I just moments ago got my Evinrude 73' 9.5 going after some very frustrating attempts.
these 9.5 carburetors are very finicky. You must clean it very well, I mean absolutely clean.
you might want to replace the water pump impeller, you never know when it was last replaced.
its not too difficult if you look on the internet or YouTube videos, there's some great step by step on these motors.
I'd notice on my 73' there seems to be a lot of blue smoke on initial start, then it clears after some minor idle adjustments.
 
Get it out of that trash can. It was made to run on a boat on the lake. It will run much cleaner there, and the water pump might work better also. But don't trust the impeller if you don't know its history.

Water coming from the gearcase is alarming. Do we understand what you mean there?

Sounds like the high speed jet (orifice plug) in the carburetor is plugged up.
 
Thanks for the replies everyone. I just got the motor out again today. I swapped out the fuel tank and line and went through and made sure all the connections were tight. Some fuel line connections weren't completely tight. Motor starts and goes into gear fine now. I rev it up and it doesn't die. I plan on getting it to the water tomorrow. Unfortunately, I don't live on water, hence my trying to solve problems with the trash can water.

I changed the lower unit oil today also. It was a bit milky, but I also noticed that the guy who sold it to me didn't put o-rings on the bolts. So hopefully that was the problem with that.

The smoking from the engine is CONSIDERABLY less. Almost none at all now. I added some Seafoam to a fresh tank of fuel. Is that why? Or could it have had anything to do with the lower unit oil?

We'll see how tomorrow goes. Thanks everyone for your responses. Any advice is appreciated as I'm very new to all of this.
 
The lower unit oil is in a sealed housing.-----It has nothing to do with the smoking from the exhaust.------Change the impeller now as the motor has no warning / shutdown system.------Water in the gearcase is not good for the bushing above the pinion gear.
 
Daddy Cory said:
I changed the lower unit oil today also. It was a bit milky, but I also noticed that the guy who sold it to me didn't put o-rings on the bolts. So hopefully that was the problem with that.
Click to expand...

"O"Rings on the bolts??.... There should NOT be any "O" Rings on any of those bolts! Don't second guess the factory.

If the engine still has a tendency to stall out when throttle is applied... the brass high speed jet is located horizontally way in back of the carburetor drain screw. Carefully clean it with a piece of single strand steel wire.
 
I think he meant the drain and fill screws.-----The nylon washers may have stayed in there.-----Do not use o-rings on the fill / drain screws
 
Yes, I meant the drain and fill screws. I did not notice any nylon washers, but I'll check it out again today and take the o-rings out.
 
These "Stubbies" really need fresh air. They will rarely run properly in a can of water. The air intakes are very low and will inhale contaminated exhaust air. Even while testing with the cowling removed, you will experience problematic tuning. I often direct a fresh air fan to provide oxygen while tuning ANY outboard in a tank, barrel, or can.
 
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