1963 3 HP Johnson Seahorse----HELP !

[nwcove]

Re: 1963 3 HP Johnson Seahorse----HELP !

+1 with lindy, the carb kit ($20 or less) has everything you need plus extra parts for different carbs. the thick gasket is crucial for even getting the motor to start! ( it wont suck fuel from the bowl without it sealing) . remove the welch plug ( drill a small hole in it...BE CARFULL to just drill through the plug, dont let the drill bit drop into the space below !)clean the carb...reclean it,run a strand of wire through every hole you can find. you probably will be very happy with the results!!

 

[barrycc]

Re: 1963 3 HP Johnson Seahorse----HELP !

Wow...that is GREAT tips, friend ! thank you so much ! I REALLY want to get this little baby running; to get up to this 'bass lake' here; my 52 year old wife hasn't been there since she was 14 with her dad !
If I catch a bass---I'll smoke it (?) haha & send you some ! LOL
Thx a ton, friend !

 

[barrycc]

Re: 1963 3 HP Johnson Seahorse----HELP !

Sorry---when you say 'thick gasket'---are you referring to the big 'main' gasket that is inbetween that lower bowl; and the other 1/2 of the carb ?

 

[nwcove]

Re: 1963 3 HP Johnson Seahorse----HELP !

BTW....what the heck is UNDER the 'welch plug' ? Jeepers---wouldn't a overnite soak in a carb bath clean that OUT ?
thx....

under the plug is a few TINY holes, that meter fuel for slow speed. just soaking doesnt clean the carb out! you need to clean it. the smallest piece of crud will effect idle, but thats not your issue yet. rekit the carb and clean it right the first time. ( be wary of the sierra kits for that thick gasket for the high speed passage.....if it is to thin, and doesnt seal, the motor will not suck fuel to start.

 

[lindy46]

Re: 1963 3 HP Johnson Seahorse----HELP !

Under the welch plug is a chamber with holes in it. If there is crud in that chamber, it WILL clog the small holes in the chamber, and there is no way to get the crud out without removing the plug. Regarding the nozzle gasket, if you can bolt down the float chamber with no resistance, the gasket is too thin. It should "seem" like the float chamber is not fitting back down on the carb body properly - like something is in the way. That is normal - you have to tighten the bolts to slightly squash down that nozzle gasket.

 

[barrycc]

Re: 1963 3 HP Johnson Seahorse----HELP !

Wow...thx so very much for all these great tips !!! I will def let you know how I make out !
Man---THIS is the kind of thing the internet is so awesome for !
Thank you again !!!

 

[barrycc]

Re: 1963 3 HP Johnson Seahorse----HELP !

Hello ! GREAT news here, friend ! Took the carb off; the float needle was stuck ! Took off the welsh plug; sure enuff the 4 holes were clean as a whistle ! Put it on my tank--it started 2nd pull ! But even BETTER---that's the FIRST TIME it ran without the choke open ! AND the 1st time it ran slow--med-& fast speeds ! WOO HOO ! However---still seems to be 1 minor prob now---I was so excited---I ran it to tell the wife---came back out and the gas was POURING onto the ground. Seems to be FLOODING now !
Any idea what would cause the gas to pour out like that ?
Thk a ton for your help & guidance ! Now---if I can find another carb; I'll know what to do to get the other identical motor running too !
(but not today !) LOL
Thx again !

 

[lindy46]

Re: 1963 3 HP Johnson Seahorse----HELP !

Where is the gas running out? The carb throat?

 

[barrycc]

Re: 1963 3 HP Johnson Seahorse----HELP !

Was running right out the front of the carb---if that's the 'throat' (?)---just POURING out. Soo---I didn't want to run it too long in my (shallow) tank----put it on a boat in the lake---she started up beauty ! It ran for maybe 1 min or so---I put it down to 'slow' speed; it died; and the gas started puring out the front of the carb (again)
Try to start it---no go. I assume it was majorly flooded !
thx !

 

[barrycc]

Re: 1963 3 HP Johnson Seahorse----HELP !

Wonder if the friggin' flot is stuck OPEN now ? (before the needle was stuck DOWN)

 

[barrycc]

Re: 1963 3 HP Johnson Seahorse----HELP !

OMG ! just started it again----it's running like a TOP !...BUT....it JUST died again, and I can see gas 'floating' on the inside of the carb (just looking thru the front of the carb)
Question---if you turn off the motor---(or it dies) should one tun off the gas tap at the tank immediatly ?
I turn it off when I see gas 'floating' in the carb----that's for sure !

 

[barrycc]

Re: 1963 3 HP Johnson Seahorse----HELP !

Dammit....now it won't start at all....#$%^&*#$% !!!!!!!

 

[barrycc]

Re: 1963 3 HP Johnson Seahorse----HELP !

got it going---same thing...runs for 1 min beauty---then stalls & gas is pouring out of carb.....sigh.....

 

[Joe Reeves]

Re: 1963 3 HP Johnson Seahorse----HELP !

Assuming the float is okay (it does float doesn't it?), install a new float needle valve assembly and adjust the float as follows.

(Carburetor Float Setting)
(J. Reeves)

With the carburetor body held upside down, the float being viewed from the side, adjust the float so that the free end of the float (the end opposite the hinge pin) is ever so slightly higher (just ever so slightly off level) than the other end. And when viewed from the end, make sure it is not cocked.

 

[barrycc]

Re: 1963 3 HP Johnson Seahorse----HELP !

Hi--thx---yes 99% sure the float is 'floating' ! But something ELSE has occured to me ! I have 2 IDENTICAL motors---and BOTH of them have what I THINK is not the original HS jet.
(I know now what are the HS & LS jets---always got those mixed up when talking about them)
Pretty sure ONE of them should work.
Would you have (or know where I could get) spare carb parts ? (already checked eBay--nothing there)
thx, man--appriciate all your help

 

[barrycc]

Re: 1963 3 HP Johnson Seahorse----HELP !

There is a new needle in it--thx. just tried again----starts---runs for 1 min---dies & gas pours outa the dam carb.
Wanna buy a motor or 2? I have TWO that both don't run.....

 

[Joe Reeves]

Re: 1963 3 HP Johnson Seahorse----HELP !

A 3hp engine, if it has a brass high speed jet would only have that one jet. The slow speed valve would be an adjustable needle valve.

I can't understand what your problem might be. A flooding carburetor is one of the easiest problems to solve.... either the float is adjusted improperly, is upside down, or the needle valve and seat assembly is faulty.

What makes you think that both engines have the wrong high speed jets installed. The size of the jets is imprinted on the side of the jet. List here the model number of the engine(s) and the jet size(s) associated with the engine(s). I'll see what I can find out.

 

[barrycc]

Re: 1963 3 HP Johnson Seahorse----HELP !

OK--Thx---then I'm good on the LS brass needle valve.
I have like a 'screw' for the HS valve---but it sure doesn't look like the exploded view HERE:

http://www.outboard-boat-motor-repa...Johnson 3 HP 1952-1967 Carburetor Tune-UP.htm

I adjusted the float VERY carefully (!!)---it doesn't seem to 'flood' now. BUt NOW it starts / stops and will only keep running if I pull the choke in & out as it starts to stall.

This is the motor with all the new parts--wires, coils, points, carb KIT; and was running BEAUTIFULLY this morning---but only for a min or 2.
Model: JH-19M
Ser # C415258

This is the OTHER motor---just tried it on the boat with the re-built carb--just to see if it would go. (1st time I've tried this one) No go.
Model: JW-21E
Ser: C503742

I looked on the carb & jets---I don't see ANY numbers beside the jets---or any numbers on the carb at all.
From waht I can tell---these are BOTH 1962 or '63 engines. (but YOU'RE the expert here---that's 4 sure !)
BTW---is your email address: reevesj32@aol.com ?
Thx again, friend

 

[barrycc]

Re: 1963 3 HP Johnson Seahorse----HELP !

Oh---and BTW----just so you know (!!)...I'm 56 years old; have a electronics 3 year diploma from college; and am known as 'Mr. Fixit' !
I was taking apart stuff & putting back together when I was SIX !!! There are VERY few things I can't repair !---but this SIMPLE motor is driving me bug-****. LOL
Just wanted to mention this---so you knew you weren't talking to some 18 year old know-it-all-...LOL
thx

 

[Joe Reeves]

Re: 1963 3 HP Johnson Seahorse----HELP !

OK--Thx---then I'm good on the LS brass needle valve. I have like a 'screw' for the HS valve---but it sure doesn't look like the exploded view HERE: (I deleted that hyperlink (Joe). I adjusted the float VERY carefully (!!)---it doesn't seem to 'flood' now. BUt NOW it starts / stops and will only keep running if I pull the choke in & out as it starts to stall. I looked on the carb & jets---I don't see ANY numbers beside the jets---or any numbers on the carb at all. From waht I can tell---these are BOTH 1962 or '63 engines. (but YOU'RE the expert here---that's 4 sure !)

I have no idea what a LS brass needle valve is.

You have a screw for the High Speed valve????

The brass high speed jet is in the bottom center portion of the float chamber... way in back of that drain screw that you see in the bottom front part of the float chamber.

JW19M = 1964 3hp Johnson - High Speed jet ID is .029 . ID # on side of brass jet is 29D

JW21E = 1966 3hp Johnson - Takes same high speed jet as above model.

High Speed jet is #50 in the below diagram.

BTW, I'm 79... That still makes you a kid