15 hp evinrude carb

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davema

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Jul 6, 2009
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How do you install the part called bushing idle needle? Its a small plastic funnel looking piece. I dont want to mess up the threads thanks.
 
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Rick.

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Re: 15 hp evinrude carb

Is there a pronounced square piece on the outside diameter. If yes then the carb. body is slotted to accept the square piece. Push it in the screw in the slow speed needle. If the bushing is round the push it in the carb. and screw in the needle. Posting the year is always a good idea. Best of luck. Rick.
 
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OptsyEagle

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Re: 15 hp evinrude carb

Well the first thing you have to do is get the old one that is currently in it, out. If you haven't done that yet then my method is to take a #8 deck screw and once I contact it, inside the jet, I give it about one full slow and light turn to just bite into the plastic bushing. I then just pull it out slowly. Obviously you want to be very careful with this method, since if that steel deck screw gets in contact with the end of your alluminum carb, it can do some irrepairable damage.

Once it is out, I spray it with carb cleaner or whatever you are using and then blow compressed air through it many times. Then I just take a rod that is a little less in diameter then the jet orriface and close to the diameter of the bushing and just push it in lightly until it seats. Make sure everything is clean, like the rod you're using, etc., and you are done. Place the retainer in and screw in your needle.

I have heard some people just put the bushing in the jet orriface, put in the retainer and then with the slow speed needle, slowly screw it in and let it seat the bushing. You eventually have to seat the needle anyways during your setting procedures. It may work, I have never done it that way.
 
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forgedin78

Seaman
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Aug 2, 2009
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50
Re: 15 hp evinrude carb

So, you are saying that it goes all the way in? Right? I'm having trouble too, on my 75 15hp evinrude. It seems like the bushing is too big. It's really tight.

There was no old one in mine, that's probably why it was hard to get it to idle huh?
 
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forgedin78

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Aug 2, 2009
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Re: 15 hp evinrude carb

is it possible my carb has been changed to one that doesnt need this bushing? Where would I find any numbers on it to check?
 
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Rick.

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Re: 15 hp evinrude carb

There should be part numbers on your carb. Check on the BRP site to see if they match. The 9.9 for your year doesn't show that bushing either. Rick.
 
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OptsyEagle

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Re: 15 hp evinrude carb

OK, we have two motors with similar questions on this thread. I agree with the others that when I search for a 1980 15Hp motor the parts list does not show this bushing, so perhaps it should not be used.

As for the 1975 15Hp, not only does the parts list show this bushing, but I know it is there since I have the identical motor and have replaced this part a couple of times. The parts list calls it a needle bearing, but in any event, it is the very small plastic funnel looking piece that is supposed to be seated at the end of the slow speed jet oriface.

As for the poster' who thinks he does not have one. I doubt this but maybe. The reason I think you have one in there is, firstly, it is very difficult to see when it is in the jet oriface, even with the best lighting conditions. Secondly, I cannot imagine an owner going to all the trouble of removing it and not putting another one back in there, but I suppose stranger things have happened in the past.
 
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forgedin78

Seaman
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Aug 2, 2009
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Re: 15 hp evinrude carb

I am sure it wasn't in there. (I have the '75 15 horse) I looked many times to be sure with a good light i could see the bottom of the port and still see the circular milling marks in the bottom of the aluminum housing. There was nothing but metal in there with a tiny hole in the center leading to the large passage with the round peened over cover. I put the new one in, i used a pin punch just the right size, and tapped it in till it seated in the bottom, hopefully that was right, because it looks like it might be real tough to get out even with the wood screw idea.

So the needle seats against this bushing now? or does the needle seat against the pinhole while the bushing rides on the straight part of the needle shaft?
 
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forgedin78

Seaman
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Aug 2, 2009
Messages
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Re: 15 hp evinrude carb

Ok after some forensic wiping i came up with a number, 3869884 or possibly 8869884 I think its the first one because its only one number different than an omc number for a 15hp carb for that year omc has the number as 0386988. So I'm pretty confident that's the right carb for the motor.
 
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