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Nikki carb where does the jet that fell out in my hand when I removed the float go

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That's a small needle there should be a little spot for it to slid on the bottom of float goes down in the hole under the float

Posted on Nov 01, 2013

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Need assembly diagram for nikki Carb 79778

You will find a lot of pictures and diagrams
nikki Carb 79778 Google Search

Mar 31, 2016 | Garden

1 Answer

Little brass piece with the hole in it and the o ring fell out when I took the bowl off my 17.5briggs. I must have put it back in the wrong place when it back together. Does anyone know where it goes?

Is it a Nikki carb? The little brass piece is the main jet and goes in the long tube in the center of the plastic piece that holds the float and float needle. It is inserted from bottom side and seats in the top of the tube.

Jul 24, 2014 | Motorcycles

1 Answer

Fuel not getting to carb

remove carb...remove float and float jet...blow through with compressed air. Check float height and also check float for holes.

Sep 22, 2012 | Honda Motorcycles

1 Answer

Briggs and straton 205412-0187e1 runs on full choke only rebuilt carburetor due to surging now it only runs on full choke

This engine came with 2 different carbs. Walbro and Nikki. The Nikki carb has a very fussy float plate! I fight them often! Usually there is a problem with the odd gasket that lifts the flat plastic plate and causes a very low fuel float level in the carb so the only way it stay running is to have the choke on. The main fuel jet on both carbs is up inside the threaded area of the bowl nut. When the main fuel jet clogs...and it only takes a speck of something you also get the symptom of having to use the choke to keep it running.

Main fuel jet is item 117 Nikki or Screwed into item 142 Walbro of the of the above link depending on which carb you have.
The plate I am talking about on the Nikki carb is item 135. The fussy gasket is 137A.

THE threaded area is where all the main fuel supply is drawn from the float bowl. All that must be free of obstructions. Until this is clear and orifices / jets are not obstructed; your going to be running on choke....

Thanks for choosing FixYa,

Aug 20, 2011 | Briggs & Stratton Power Products 5,550...

1 Answer

When it idles sounds good but as soon as i put it into gear it chokes out. i cleaned carb but i found out i didnt take the floats apart but i cleaned inside an outside of carb. my friend thinks the left...

first things first, what kinda bike are we working on? you say 2000 250r i'm getting its a twin cylinder from your left piston remark...... my crystal ball is telling me it's a ex 250 ninja. Am i close? Ok moving i'm going off of just my ability to tuning blind. First the carb is more then a float and a blow to hold gas, its the step in proper tuning, It effects every part from idle to red line. there is alot happen in that little magic box. we will hit the basics. when you first remove the carb and your holding it in your hand, looking down the throat you dont see much, a slide, a needle, and some small wholes. the C.V. carb raises the slide with vacuum presser, the more you open the butterfly ( the round disk looking thing in the throat ) the more air the motor pulls in causing a vacuum lifting the slide pulling the needle out of the hole. Now remove the cap on the top of the carb, you'll find a spring, and the needle slide remove this. flip the carb over remove the float bowl, laying in front of you will see a float, ( the plastic part, older carb had metal floats) you'll need to remove this there is a pin you may need to tap on it with a pick BE-CAREFUL the posts will break easily, next the float needle will be next if it is not hooked to the float. the float needle sits in a seat, the float needle and seat make the valve that lets the gas into the float bowl, inspect the seat and float needle to make sure that they are not nicked. ok the main jet is the next, when your looking down at the carb it will the taller of the "stems" in the middle, there are a few parts in the stack. unscrew the main jet again be-careful they are brass and soft the main jet is going to have a hole in it make sure it is clean, the main jet is what feeds your beast when you start getting off idle. The idle jet is next, you'll find this jet IN the other " stem " you;ll need a smaller flat head and i cant stress the point be careful they are brass and WILL strip easy. remove this jet insure it is open. next is the air/fuel screw it will on the outside of the float bowl on the bottom, most likely one the front ( the part that goes to the motor) the factory puts a small alum. plug over it to do two things 1st keep people that dont know how to tune a carb from messing with it, 2nd keep people that dont know how to tune a carb from messing with it. the cap is most likely been removed due to the age of the bike. if it has been simply unscrew the screw. there will be a screw,a spring,a metal washer then a rubber washer. put then back this way. after you have it out take some carb cleaner and spray inside the hole you should see it come out the idle jet hole and a small hole inside the thoat of the carb. , now that its clean put it back together, all the right way. if you have more then one repeat, now the carbs are on the bike they need to be synchronized, this is something that most people cant do in there home shop. if your piston was going out you would know it makes a hell of a noise. your cylinder is most likely not firing. give it a whirl and let me know how it works
If you have any more questions let me know

Apr 18, 2011 | kawasaki Ninja 250R Motorcycles

1 Answer

How do you clean the jets

Take carbs off the bike drain any fuel that might still be in carbs,remove black top and the spring,carefully remove the rubber diaphragm,the slide and jet needle will come out,turn them upside down,remove float bowl,remove float,remove the little brass jets, the smallest one is the pilot(idle) jet,the larger one is main jet,then there is a needle jet,soak in carb clean if possible,if no clean then small bread tie to clear the holes.(carb kit),do one at a time so not to get parts mixed up.

Feb 18, 2011 | 1992 Yamaha FZR 600

1 Answer

My 5.5hp honda is surging even with the belt this carb. only or are thier orther factors,such as bad gas

Bad gas can cause the engine to surge, but also the carb bowl and jets need cleaning. I usually drain the gas, remove the bowl, wipe inside the bowl , and then use a carb cleaner to spray the float and jet/s. The float may be hanging up. It would be best just remove the gas and clean the bowl area and float/jets. I wouldn't think replacing the carb. is the problem.

Feb 03, 2010 | Air Tools & Compressors

3 Answers

Not getting fuel

pull carb and clean jets

Jan 30, 2010 | 2004 Yamaha YZ 450 F

1 Answer

I have a Snapper yard cruiser with a 15HP Kohler and Nikki Carb. THis Carb has no way to adjust Idle or High Speed fuel mixture. Since this engine repeatedly stalls with any load on it ecold or hot, I...

Correct that there are no adjustments, but try cleaning the carb jets first, as many times a small amount of debris in the fuel can cause a performance problem. A replacement carb will be close to $200, and NO carbs will be adjustable. A gasket kit is available if you need. Contact your local Briggs dealer to procure the part.

Try cleaning the jets first.
Fuel Starvation - Float Bowl Carburetor
1) remove air filter assembly
*be cautious of tearing the mounting gasket. If it does tear, you HAVE to replace it. It is part of the priming system
2) remove the float bowl fastener. This is the main jet
3) carefully remove the float bowl, the rubber o-ring/gasket will not be able to be used if it is removed, you WILL have to replace it
4) using a spray 'carb cleaner'
spray up thru the center of the carburetor
spray and clean the main jet with cleaner and 'tag' wire
(tag wire is very thin, and can be used to clean the hole in the center of the main jet)
5) clean any debris from inside the bowl or carb body
6) re-install bowl and center bolt, air filter assembly

*if you need gaskets, your Briggs dealer can supply. The kit is cheaper than individual gaskets, and all the parts needed to finish the above repair are in the kit.

Nov 21, 2009 | Garden

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