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How do you set the needle float for the gas - ECHO, Inc. PB-251C Handheld Blower

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Using flat edge placed over needle lever,bend till even with flat edge and when you push down on this lever it should just start to lift the needle.

Posted on Jul 12, 2009

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99 Polaris 500 xc sp flooding, cleaned carbs and checked floats and main jets. reinstall carbs and run. next day fill gas tank approx. 12 gallons. next morning motor completely flooding gas tank lost


it sounds like it is still you needle and seats are worn or your float has a hole in it just check the float and see if it has fuel inside it ,but i say a new set of needle and seats and bowl gaskets cheers

Jan 27, 2015 | Winter Sports

1 Answer

I have a 2003 honda cr 250r 2 stroke,It will not kickstart,you can bump start it and it starts right up and runs really good.when you try and kick it it leaks gas out of the carborator.


Usually, a leaking carb is because either the float is set too high, or there is some crud stuck between the float's needle valve and it's seat.
Either one will not allow the float/needle valve to shut off the flow of gas when the float bowl get's full.

This should be your carb:

http://www.bikebandit.com/houseofmotorcycles/2003-honda-cr250r-carburetor-02-03/o/m2194sch305112

The floats are the 2 large square items on #5 on the illustration.
Item #3 is the float needle valve.
Item #4 is the needle valve's seat.

Jan 01, 2014 | 2003 Honda CR 250 R

1 Answer

Flooding


A) I didn't know Yamaha makes a Desktop PC.

B) So far, I don't know of any desktop computers that use an internal combustion engine, and use a fossil fuel to run it.
Hope not because this is going against the grand scheme of things, lol!

C) Fresh top end, and a carburetor fuel induction system; plus flooding out?

1) Float level is set too high.
Readjust level. Worked fine before top end job?
Maybe it got bumped.......umm, like dropped.

Carb was rebuilt too? Float level is not correct.

2) The tip of the float needle is Neoprene. As such it can be damaged from a fall.
It can also be deformed from having too much pressure applied to it, when installing.

3) Float needle seat has come loose from carb main body.

4) Float needle seat is damaged. Tightened too tight, etc.

5) Junk in fuel tank has made it's way into between float needle, and float needle seat.

6) Float needle hair spring clip, was not properly installed on float.
(If used)

7) Carb was Not rebuilt, has sat while top end was done. This took some time, like weeks, months, to get too.
All the cr@ppy additives in the gasoline, has collected in the float bowl; and causing float needle to not set correctly in float needle seat.

Regards,
joecoolvette

(Now watch. You'll come back with a voice like Stimpy, and state;

"joecoolvette, you stink-ing idio-t!
I was referring to my Yamaha desktop computer. It's spraying gas out of the carburator. You have no idea of what you're doing.

Signed, Stimpy)

Mar 26, 2013 | Computers & Internet

1 Answer

Have a murrry mower with 12 hp moter put a cut off on gas line some times runs ok then will start flooding if you cut gas line off start engin it will run a second or two then start blowing oil out an


If you have a float style carb I believe the float has become a "sinker". Pull the float bowl off the carb and set aside. pull the float pin and also set aside. carefully remove float and needle, set needle aside. Shake the float near your ear. If you hear sloshing in the float, replace it. No? check needle and seat for wear, or since you're into the carb this far replace them. This info is based on Tecumseh carbs, but B&S or Kohler should be similar. If there are any other questions don't be afraid to ask. There is no such thing as a stupid question.

Jan 29, 2013 | Briggs & Stratton Garden

1 Answer

My TZR 250 3ma, leaks fuel from the carburators, I had them cleaned and the float levels resetted. On the fuel tap if it is on or on reserve it gushes out the fuel. Can the tap be the problem and is there...


The tap is not the problem, it is working as it should. The problem is that the float needles are not shutting off the fuel as they should. Turn the gas off then remove the float bowl on one carb and check for trash in the bowl. Turn the gas back on while gently lifting the float. Now lower the float. The fuel should flow when the float is lowered and stop flowing when the float is raised. If it still flows with the float raised, turn of the gas then check to see if the mechanic forgot to install the float needle by removing the pin that mounts the float/needle assembly. Most carbs attach the float tang to the needle with a small clip. Is the clip missing? The needle can get out of position and not close properly without it. The float should be light as a feather and nothing inside rattling around. A float that doesn't float will never shut off the gas. If the float is good, disconnect the gas line at the carb then get a can of carb cleaner with a "straw" to direct the spray and stick the straw into the opening where the needle goes and spray into the hole. Trash may be holding the needle open. The spray should clear the trash out. If the float floats and there is no trash holding the float open and the needle kills the gas, the floats are way out of adjustment. Below is a generic float assembly. Please take a moment and rate my answer. Thanks! tombones49_45.gif

Apr 01, 2011 | Yamaha TZR 250 R Motorcycles

1 Answer

Leaking gas through air filter


If the GCV engine is tilted with the carb. down, it will leak gas. If it is leaking gas setting level, this indicates the float/needle is not shutting the gas off properly. Would need to disassemble carb. and check the float and probably replace the inlet needle. The float hinge may be "varnished" and not allowing the float to "move" and shut off the fuel coming into the carburetor. Hope this helps in some way.

Mar 02, 2011 | Husqvarna 21" Lawn Mower with Honda GCV160...

1 Answer

How do I put the float and bowl back on my Troy-Bilt generator. Gas is leaking out of carburator unless gas is cut off. Also where does the spring goes?


The fuel needle sets in a recess in the carb. the retaining clip is attatched to the tab on the float and the needle attaches to the clip carefully install the fuel needle/float assembly into carb inster pin to retain float into carb replace rubber seal on carb. / bowl cover assemble

Dec 19, 2009 | Electrical Supplies

3 Answers

I have a 2 barrel carb off a 283ci 1967 chev carter carb


no spring poss small wire from needle to float! the way it works is float is up needle close because float bowl full--when fluid or gas goes down valve opens lets fluel in.ck full pump disconnect line at carb crank over with guage should have apprx 7psi of press not less then 5psi carefull gas flameable

Aug 30, 2009 | Chevrolet Chevy Cars & Trucks

1 Answer

Just bought a 82 xj650. It has some flooding on the right carb. any suggestions? Gas comes out the right side exhaust, also dies after running about 10 to 15 minutes.


Yes.

1.Remove the Float Bowl, (Turn gas off first), and clean the crud out of the bowl. (Bottom of the carburetor)
There is a brass nut in the middle of the float bowl, which is on the bottom of the carburetor.
There is a fiber, or brass washer on that bolt. DON'T lose it! (Turn it to the left)
The brass bolt, (Main Jet Plug), goes through the float bowl, and into the Main Jet.

Remove the float, (Carefully! If it's a plastic designed float, Don't nick it with your fingernail/s. Also make sure it isn't soaking up gas. If so, {You'll know!}, replace it)

A.DON'T let the float needle valve fall out, when you remove the float! The Float Needle is attached to the float, with a small 'hair spring' clip.

B.DON'T lose the tiny, 'hair spring' clip, that attaches the float needle to the float.
Observe VERY carefully how this tiny spring clip goes on the float, ->Before you remove the float pin. (The float rotates up, and down, on this long round pin) It has to be put back the same exact way)

Handle the float with extreme care. It is set to a certain height. The measurement goes from the bottom of the carburetor body, (Where the side of the float bowl touches), to the top edge of the float.

The top of the Float Needle has a groove cut around it. That 'Hair Spring' clip I described above, clips in this groove. The other end of this 'Hair Clip', goes around a flat area that extends out of the side of the float.
Once you get the float bowl down a bit, you'll see what I'm referring to above.

C.The Float Needle Valve is made of metal, and has a Neoprene, (Like rubber), tip on the end. The Neoprene tip is cone shaped. A light little ring mark on the Neoprene tip is okay.
If the tip is broken, or mushed out, the Float Needle Valve is no good.

More than likely you just have crud in the float bowl, and it is also down in the Float Needle Valve Seat.
(The Float Needle Seat is a brass cylindrical shaped piece. It has a tapered hole inside, down at the bottom. Fuel, {Gas} comes through this tapered hole, and the Float Needle Valve regulates how much. The float raises, which raises the float needle valve. Fuel comes through the tapered hole. The float drops, which lowers the float needle valve, and stops fuel from coming through the tapered hole, and into the float bowl)

After time, the bottom of your gas tank develops rust, from moisture in the gasoline.
Dirt also finds it's way into a bike's gas tank. Also the additives in gasoline accumulate after a while.

If you do not have an inline fuel filter, I advise you buy, and install one. This way you change the fuel filter element, and do not have to tear the carb/s down again.

Aug 07, 2009 | 1981 Yamaha XJ 650

2 Answers

Gas leaking from carb on troy built rototiller


The float should not ave liquid in it. if it does, it is caused by deterioration in the float and the there is a small hole allowing gas to enter the float. dry the float and then inspect it in the sunlight and you will see gas seeping through the hole. empty the float by shaking it vigorously and letting it dry out. then use a chemical resistant epoxy to seal the float and you should be fine. the reason gas is coming out of the carb is because the float is gas logged and will not raise inside the bowl enough to close the needle valve.

Mar 21, 2009 | Garden

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