embarassed on my first trip

sgtsteve

Recruit
Joined
Jun 8, 2011
Messages
3
What's up dudes? Just so you know I am new to boating. Lost my virginity to 1 mile plus waters last weekend. I need some advice on the following situation:

I recently purchased a 1982 Cobia 228 Odyssey 21' CC with a 350 I/O. It's in great shape for its age, but I was very hesitant to buy it because I didn't want to deal with an unreliable engine. When I first went to look at the boat, the seller started it up and it popped right off no problem. After buying it I took it home and hooked it up to the hose and started it. Again it started first try no warm up.

At this point I am fairly excited to get it on the water, so I called a few friends and took it to St. Marks Bay. I had to haul it down some bumpy roads to get it there. When I got it in the water, with all my friends and a bunch of strangers watching, it wouldn't start. I tried and tried. Finally, I pulled it out of the water and tried again. Ill be dammed if it didn't start right up.

So, feeling like I fixed the problem with my PFM, I put it back in the water (keep in mind I wasn't getting much help from my friends launching this 21' boat). I turn the key, and it won't start again. its turning over, but no fire.

So I hook it up, pull it out until the motor is out of the water and try again. I starts on the first try. This time I left it running as I launched it.

After that it ran fine the rest of the day. I went for miles, stopped a few times and every time it started right back up. Even after sitting for an hour or so. Ran perfect. When I got it back home I hooked it up to the hose to run some water through it and it did it again. I ended up pumping the bubble on the gas line 3 or 4 times and after a few tries it started. Has anyone ever had this problem? is it something I should be concerned about, or is this normal for an older engine? Thanks for any advice.
 

mkast

Lieutenant Commander
Joined
Nov 6, 2002
Messages
1,934
Re: embarassed on my first trip

I starts on the first try. This time I left it running as I launched it.

I ended up pumping the bubble on the gas line 3 or 4 times and after a few tries it started.

If the boat has an Alpha drive, the impeller will have to be replaced. Engine running without water to the drive will melt the impeller.
Most I/O's don't use a bulb on the fuel line, something about an engine driven fuel pump.
 

Don S

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Aug 31, 2004
Messages
62,321
Re: embarassed on my first trip

Do you use the throttle at all when starting the engine?
 

Icyharp

Petty Officer 1st Class
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Apr 27, 2011
Messages
201
Re: embarassed on my first trip

I too assume you have an Alpha Drive, replace the impeller, and also agree that having a bulb on the fuel line is an issue, hope you didn't put it on. I would suspect the fuel pump is having a few issues.

As for the throttle you never stated what you do with it prior to turning the key.
 

nikon

Petty Officer 2nd Class
Joined
Jan 12, 2011
Messages
193
Re: embarassed on my first trip

I have a bulb on my IO...makes the first start much easier when you don't have to crank and crank to fill the damn carb up...give the throttle a few pumps before you start it should fire right up.
 

Icyharp

Petty Officer 1st Class
Joined
Apr 27, 2011
Messages
201
Re: embarassed on my first trip

If you have to fill a carburetor up, you have a problem.

Ya if you use a bulb on an I/O you have issues to start with, and if you have to fill the bowl up means you for sure have an issue - I would be wondering why my fuel returns to the tank, maybe, if it were mine. Think of having a carburated car and having to squeeze a bulb everytime to start it cause the bowl went dry, you would have fixed it first, same should go with you boat.
 

sgtsteve

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Jun 8, 2011
Messages
3
Re: embarassed on my first trip

I tried starting with the throttle down and with it at about 50%. I don't know why there is a bubble. I am used to little outboards so it didn't look out of place to me. I will check out the Alpha drive, and the fuel pump. Thanks for the feed back.
 

nikon

Petty Officer 2nd Class
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Jan 12, 2011
Messages
193
Re: embarassed on my first trip

If you have to fill a carburetor up, you have a problem.

Not every start...after sitting for a week or two though, it helps. Bowl doesn't go completely dry, but enough that I would have to crank for 4-5 seconds...with the primer it's instant.
 

Don S

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Aug 31, 2004
Messages
62,321
Re: embarassed on my first trip

Have you tried moving the throttle all the way to WOT a time, maybe 2 then to 1/4 throttle and see if it starts.
If you need a primer bulb, you have a problem. Period.
 

mkast

Lieutenant Commander
Joined
Nov 6, 2002
Messages
1,934
Re: embarassed on my first trip

Not every start...after sitting for a week or two though, it helps. Bowl doesn't go completely dry, but enough that I would have to crank for 4-5 seconds...with the primer it's instant.

Let's see, the boat was shipped without a bulb, why is one present on your boat?
 

sgtsteve

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Jun 8, 2011
Messages
3
Re: embarassed on my first trip

OK I am definately having to prime it to get it to start on the first try. I assume thats why the previous owner put a bulb on there. Is the fuel pump supposed to prime the engine? Or am I just having some kind of ignition problem? Thanks again
 
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nikon

Petty Officer 2nd Class
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Jan 12, 2011
Messages
193
Re: embarassed on my first trip

Let's see, the boat was shipped without a bulb, why is one present on your boat?

I will say this, I had put the bulb on there when it still had the original carb, which I did have problems with and needed the bulb to get her to fire up...

I've now put on a edelbrock and have just kind of continued with the routine I got used to, it may be just fine....never tried it to be honest with you.
 
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