1990 50 HP FORCE AIR BREATHER

jasper astro

Petty Officer 3rd Class
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Oct 1, 2003
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77
On my carb, i have no air breather filter assembly. The carb is exposed and would likely pick up trash while running. I have noticed some screw ports on the front of the carb and it looks like a breather unit goes there. When i purchased the motor (USED) it did not have one. Does anyone know if there is supposed to be one there? and if so were could i find one, or maybe build one to fit the carb.<br />Thanks ....jas.... :rolleyes:
 

dave6558

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Aug 24, 2004
Messages
11
Re: 1990 50 HP FORCE AIR BREATHER

i dont have a filter either and dont think it ever had one. i'm cleaning mine and keeping it really clean in the future so nothing is there to suck up in it. i have foam coming off the housing and it must go in the carb sometimes
 

jasper astro

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Oct 1, 2003
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77
Re: 1990 50 HP FORCE AIR BREATHER

I believe something has to cover the front of the carb. Most all other motors i have seen have some kind of air filtration going into the carb.<br />I will look at my seloc manual tonight to see if there even is one. It does not seem right to have a carb open to suck up trash, alot of damage can occur if this happens.
 

roscoe

Supreme Mariner
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Oct 30, 2002
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21,753
Re: 1990 50 HP FORCE AIR BREATHER

Some of them came with a baffle system, to act as a noise silencer, but not a filter.
 

jasper astro

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Oct 1, 2003
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Re: 1990 50 HP FORCE AIR BREATHER

I have looked around a bit and cant seem to find anything in reference to this. I owned a 79 Johnson 85 hp javelin that was like this, carbs with no covers, straight air intake into the carbs. It seems this was ment to be, so i will leave it alone if i dont find anything. Kind of scared of trash being picked up though. The inside is pretty clean, but you never know.
 

ricksonntag

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Jul 24, 2004
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Re: 1990 50 HP FORCE AIR BREATHER

I have a '91 50, and for what it's worth, there's not air filter on my breathers. I've never really thought much about it, but I assume it's self-filtering. By that I mean that the with the engine cover on, the only way air comes in the engine housing is through the little hole in the bottom of the housing. (The one that fuel drains out of when your carb clogs and squirts fuel into the housing :mad: ) With this arrangement, the air flow to the breather is upward and very slow, so any large particulates would settle out before reaching the breather.<br /><br />But I'm not an expert...
 

jasper astro

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Oct 1, 2003
Messages
77
Re: 1990 50 HP FORCE AIR BREATHER

I guess that the way its supposed to be. I will leave it alone. I had my bowl off the carb come off during operation last week...close call....had fuel fill the inside of the motor then started seeping out the cowling....caught fire on the outside....put out....heart attack....opened cover...no damage at all...cleaned up...sopped up fuel, put bowl back on...fired up one start...always be sure to have bowl screw tight....vibration...
 

ricksonntag

Cadet
Joined
Jul 24, 2004
Messages
15
Re: 1990 50 HP FORCE AIR BREATHER

had fuel fill the inside of the motor then started seeping out the cowling....caught fire on the outside....put out....heart attack....
Ouch! :eek:
 

i386

Captain
Joined
Aug 24, 2004
Messages
3,548
Re: 1990 50 HP FORCE AIR BREATHER

I read somewhere that this is normal. The logic is there's not a big dust and dirt problem over water like there is on land.
 
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