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Have you done a carbon clean? If you have not you won't get a good compression reading. I have had motors go up more than 40 points after a good over nite soak with seafoam. Also you will not get a full reading unless the carb throttle and choke lever are wide open.

Looks like it's had some moisture in it to me.

One more thing, change all of that old rubber gas line. And pull the cover off the fuel pump and check the screen.

Since it is a 76 model and the guy only told you that he had it on the water and that is all, the first thing I would do is change out the water tube gromets, complete oem water pump kit, dump the lower unit oil to see if any water, fresh plugs. Look under the hood for any dry, crumbly wires...

Yes I have clear plastic hose that slides over the copper tube and gets tighten down with a small hose clamp. On the other end I have a hose end with a barb the same size as the plastic hose. Works well for running the motor with no lower unit. It also works well for checking to see if the water...

I have a 71 model. It runs like a bat outa he double ll. It is almost as strong as my 85 15hp. I did not have the internet when I first got it but the first thing I did was crank it to see if it ran. It did then I went and ordered pump kit and all the lower unit seals. Filled it with omc oil...

Now that's using your noggin.

She's a real sweetheart, congrats.

Yes as a procrastinator it will probably left up to the state.

B e a utiful.

Can you tell me what model boat that is? I would love to try and find one.

Great find. Happy and safe boating to you.

Never too young to learn something new. I get hit in the face with the new stick so much I just say thank you sir may I have another.

Do you have a factory service manual? If not get one.

Im a modern day fisherman and I smoke a pipe and cigars both. But I have older tanks with vented caps. Cigars and fishing & cigars and golf. Retirement is good.

Should be a vent in your tank lid

You could have a bend in the axle. Get under there with a straight edge.

Man oh man would I love to do that. I had a friend that raced really small hydroplanes with omc 75hp stingers heavily modified. 90 + mph on the water. I love speed on water and land.

I'm with pappy. Any old motor (omc) small series I will look at the motor parts breakdown and see if it has water tube gromets. If so I try to talk customers into changing them out. But I have to tell you, most won't do it. I don't get it. There is no way I want to be stuck on a big lake (in the...