Johnson 6hp Seahorse - stalls after 3 seconds! Oil in the carb?^

[tmeo]

I have a 2 stroke 1984 6hp Johnson Seahorse "sailmaster" longshaft outboard. I took it out on Monday, but was in a real hurry, and didn't measure the 2 stroke oil (stupid me). I poured way too much in, but it didn't really register at the time, so I carried on. Well, I was chuggin down the river, and then it started running at about half speed. I "limped" back to the slip, and thought that if I put some fresh petrol in it, and gave the spark plugs a clean it would run again. Anyway, got home, did all that, and it still won't run. It's got worse now, as it runs (at about half speed) for about 3 seconds, then stalls. I need to know what's wrong with it, and HOW DO I FIX IT?? To make matters even worse, I am advertising it at the mo (I wana get a bigger one) and a guy phoned me to say he wants to come and see it!

 

[Xcusme]

Re: Johnson 6hp Seahorse - stalls after 3 seconds! Oil in the carb?^

The first thing to do is to dump the fuel tank and prepare the proper mix ratios of gas and oil (50:1). Disconnect the fuel line from the carb, put fuel line in a small container and pump the primer bulb to purge the fuel lines until you're sure your pumping fresh fuel mix. Pull the starter rope a few times too, this will verify that the fuel pump is working too. Reconnect the fuel line to the carb, squeeze primer bulb until soild and start motor.

 

[tmeo]

Re: Johnson 6hp Seahorse - stalls after 3 seconds! Oil in the carb?^

Just done that. Still won't run. I tried to get it to start about 15 times, but it just won't.

 

[Xcusme]

Re: Johnson 6hp Seahorse - stalls after 3 seconds! Oil in the carb?^

Put some fuel/oil mix in a squirt bottle and squirt some of theis mixture into the carb throat. Will the motor start and run for a few seconds?? If it does, then you may have a load of oil in the carb bowl. You didn't mention how the motor ran before you had the gas/oil mixing mishap. Did the motor idle and run OK before??

 

[Xcusme]

Re: Johnson 6hp Seahorse - stalls after 3 seconds! Oil in the carb?^

Put some fuel/oil mix in a squirt bottle and squirt some of this mixture into the carb throat. Will the motor start and run for a few seconds?? If it does, then you may have a load of oil in the carb bowl. You didn't mention how the motor ran before you had the gas/oil mixing mishap. Did the motor idle and run OK before??

 

[Xcusme]

Re: Johnson 6hp Seahorse - stalls after 3 seconds! Oil in the carb?^

Put some fuel/oil mix in a squirt bottle and squirt some of theis mixture into the carb throat. Will the motor start and run for a few seconds?? If it does, then you may have a load of oil in the carb bowl. You didn't mention how the motor ran before you had the gas/oil mixing mishap. Did the motor idle and run OK before??

 

[Xcusme]

Re: Johnson 6hp Seahorse - stalls after 3 seconds! Oil in the carb?^

Put some fuel/oil mix in a squirt bottle and squirt some of theis mixture into the carb throat. Will the motor start and run for a few seconds?? If it does, then you may have a load of oil in the carb bowl. You didn't mention how the motor ran before you had the gas/oil mixing mishap. Did the motor idle and run OK before??

 

[Xcusme]

Re: Johnson 6hp Seahorse - stalls after 3 seconds! Oil in the carb?^

Put some fuel/oil mix in a squirt bottle and squirt some of this mixture into the carb throat. Will the motor start and run for a few seconds?? If it does, then you may have a load of oil in the carb bowl. You didn't mention how the motor ran before you had the gas/oil mixing mishap. Did the motor idle and run OK before??

 

[Xcusme]

Re: Johnson 6hp Seahorse - stalls after 3 seconds! Oil in the carb?^

Put some fuel/oil mix in a squirt bottle and squirt some of theis mixture into the carb throat. Will the motor start and run for a few seconds?? If it does, then you may have a load of oil in the carb bowl. You didn't mention how the motor ran before you had the gas/oil mixing mishap. Did the motor idle and run OK before?? You can remove the spark plugs and look to see it they are oil fouled too, clean and re-install.

 

[Xcusme]

Re: Johnson 6hp Seahorse - stalls after 3 seconds! Oil in the carb?^

Put some fuel/oil mix in a squirt bottle and squirt some of theis mixture into the carb throat. Will the motor start and run for a few seconds?? If it does, then you may have a load of oil in the carb bowl. You didn't mention how the motor ran before you had the gas/oil mixing mishap. Did the motor idle and run OK before??<br /><br />I tried posting back , but the board software kept giving me error messages...sorry 'bout that.

 

[tmeo]

Re: Johnson 6hp Seahorse - stalls after 3 seconds! Oil in the carb?^

The motor ran fine before this happened. I'll give it a go; I think there probably is oil in the carb.

 

[tmeo]

Re: Johnson 6hp Seahorse - stalls after 3 seconds! Oil in the carb?^

The plugs were very dirty when I took them out...

 

[Xcusme]

Re: Johnson 6hp Seahorse - stalls after 3 seconds! Oil in the carb?^

Good grief!! <br /><br />As you can see, I tried posting back to you , but the board had a major melt down!<br />I'm sure the plugs were oil fouled pretty bad. Flushing some fresh fuel mix thru the carb will probably get things back where they should be.<br />Good Luck

 

[tmeo]

Re: Johnson 6hp Seahorse - stalls after 3 seconds! Oil in the carb?^

When you say the carb throat do you mean the bit where the fuel line comes in ? <I know very little about engines>. I will try and get hold of a manual today, that might help....

 

[tmeo]

Re: Johnson 6hp Seahorse - stalls after 3 seconds! Oil in the carb?^

Yes! It runs. Took it to a local boat yard and they stuck in thier tank - the guy gave the choke and few pulls and that got it. Seems there was oil in the carb bowl as thought - lots of smoke came out. Anyway, thanks all for your help.

 

[Xcusme]

Re: Johnson 6hp Seahorse - stalls after 3 seconds! Oil in the carb?^

Tim,<br />I'm glad you were able to put things right with your motor. The carb throat is the large opening on the front of the carb where air is drawn into the carb. This 'throat' is covered by the choke butterfly, when you choke the motor. You would push the choke knob inward, and spray fuel mix into this opening to manually add fuel to the motor for testing purposes as I stated earlier.