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Float level for GT250

2009 GT250-E

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1965 buick skylark float level ajustment for 4.9l carburetor


The float level and float drop are both measured with the gasket in place. Having said that, here are the following measurements.

Float level is measured between the edge of the float seam and the formerly mentioned gasket. This measurement is 1/2" on a 2 bbl. and 1 21/64" on a 4 bbl. for the primary and 1 3/8" on the secondary.

The float drop is measured from the bottom edge of the float as it's hanging from the pivot, to the gasket.

The 2 bbl. is 1 29/32" and the 4 bbl. is 1 19/32" on the primary and 1 3/16" on the secondary.

These measurements and instructions come from a 1965 Chilton Auto Repair Manual as that's the only reference I have.

Hope this helps.

May 31, 2015 | Buick Skylark Cars & Trucks

1 Answer

1996 750 katana suzuki how to set floats?


- Now days some carburetors are produced which are fixed and no adjustment is provided.The float is made up of whole plastic like material.
Some floats have the copper/metal notch for the adjustment of fuel level.
- Take the carburetor assembly out.
- Remove the fuel bowls.
- Place the carburetor assembly with the floats upward towards yourself.
- Float level gauge and active data list (taken from the workshop manual) is required to carry out the adjustment. But you can simply adjust the float level correctly without any gauge.
- Hold the carburetor assembly at your eye level in such a way that the carburetor No. 1 is in front of you. Behind is No. 2 carburetor, then behind is No. 3 and then the No. 4. Or we can say that the carburetor No. 1 hides the carburetors 2, 3, and 4.
- Examine carefully the floats of all the individual carburetors be parallel to the surface of the carburetor where the float bowl face is seated and tightened.
- Adjust the float level by bending the float notch towards the needle valve (to decrease the float level and to raise the float) or away from the needle valve to increase the float level (to lower the float).

Apr 16, 2015 | 1996 Suzuki GSX 750 F (Katana)

1 Answer

What does a float valve look like


A float valve is a valve attached to a float on an arm normally that when the level reaches a set level the pressure on the float closes off the valve and stops more water coming in. IN some instances where space is limited the float is around the inlet pipe and again when the level reaches a preset level the float stops the incoming water by turning off the valve Commonly found in the cistern of the toilet as both units depending on the age of the system.

Jul 06, 2014 | Hayward 3/4hp Super Pump Inground Pool...

1 Answer

2004 crf450r dumps gas out of carb when gas is turned on


your float settings inside your carb are set wrong read my advice to resetting them and you should be ok
You'll need to first start off by removing your carb. Be sure to clean the surrounding area to the best of your ability to avoid dirt and debris falling into your carb; or worse, your engine. After you've removed your carb I would suggest a thorough cleaning using carb cleaner (or equivalent) and compressed air to ensure that all jets and passageways are spotless. Avoid using wire or other tools to clean orifices of jets; it's all too easy to alter their original designed dimensions.

After your carb is clean you can now set your float level. The picture below will allow you to become familiar with the parts that are responsible for maintaining the correct float level in your carb. There are four basic parts, the floats themselves (part of the float assembly), the float assembly tang, the fuel inlet needle valve, and the fuel inlet valve seat.

floatlevel1.jpg
(Float assembly pivot pin not shown.)


It is always a good idea to remove the float assembly pivot pin (already shown removed) and extract the float assembly and the fuel inlet needle. The fuel inlet needle is a wearable part and over time can deteriorate. A worn fuel inlet needle can contribute to an irregular float level. Most fuel inlet needles consist of an internal spring loaded bumper (which contacts the float assembly tang) and a plastic or Viton (rubber) tip. Inspect the fuel inlet needle tip for wear and/or damage. To give you an idea, Eric Gorr recommends replacing the fuel inlet needle/seat assembly every two years. I've found that the average cost is around $15 for both parts.

floatlevel2.jpg
(Fuel inlet needle shown with Viton (rubber) tip. The Viton is used to isolate the fuel inlet needle from vibration and to create a better seal against the fuel inlet valve seat.)

Now that you've made sure you aren't going to have any issues from worn parts you can reinstall your needle, float assembly and float assembly pivot pin and continue on to set your float level. The float level measurement is taken from the top of the floats (when the carb is positioned upside down) to the gasket surface of the float bowl as illustrated in the next picture. You can use an open-end wrench (sized per your spec), a small metric ruler, or a float level gauge. The tolerance for your float level is usually around +/- 0.50mm.

floatlevel3.jpg


When setting the float level be aware that the spring loaded bumper on the fuel inlet needle valve may have a tendency to compress under the weight of the float assembly which will skew your measurement. Before you obtain your measurement you'll need to make sure that the float assembly tang just barely makes contact with the spring-loaded bumper. Sometimes it is easier to hold the carb body at a 45-degree angle to avoid compressing the spring in the fuel inlet needle.

floatlevel4.jpg


If you find that your measurement does not match your float level spec then you can carefully bend the float assembly tang to achieve your desired measurement. Be sure to recheck your work, and if you feel confident that your float level is spot on then you can reinstall your carb and get back to riding.

Jun 20, 2011 | 2004 Honda CRF 450 R

1 Answer

To much fuel! Boggs out! crimp fuel lin e to starve engine of gas and runs great?


Either the float level is too high or there is debris in the float needle seat. This causes the carb to overflow while running. The fix is:
- Remove the main fuel line with the fuel selector off of you have one.... or pull the line and plug it off / keep the end above the fuel tank then
- Remove the float bowl from the carb.
- Pull the float pin and remove the float and float needle (INSPECT float needle rubber tip for damage or dirt... any damage replace float needle and seat.)
- Spray carb cleaner into the main fuel supply hose / manfold fitting on the carb. Your removing any debris that night be in the float needle seat area
- Spray carb cleaner in all open fuel jet passages without dis-assembly of the carb.
- Reinstall the float needle and float (Float pin too!)
BRIEFLY reconnect the main fuel line
GENTLY lift the float to level.... (Incoming fuel flow MUST stop) Lower float.. (fuel must flow)
If the fuel flow does not stop with the float level.. you must replace the float needle snd seat. After needle and seat replacement if fuel still does not stop with the float level the tab where the float needle is will have to be bent UP no more than 0.010 at a time and then re-test flor fuel stoppage with float level. Adjust tab as necessary to get the float level correct.
- re-assemble carb
- test... running and static.
Thanks for choosing FixYa,
Kelly

Apr 26, 2011 | Briggs & Stratton Briggs Stratton Intek V...

1 Answer

Upon starting, left float bowl leaks fuel onto floor. What is float level; I do not have a gauge.


the float level is set with the carb on the bench float should be level with carb body above needle and seat you may nave abad float remove and shake to see if it has gas in it i would also recomend changing the needle and seat due to the age of bike

Feb 04, 2011 | 1990 Honda Pacific Coast

1 Answer

The high level water alarm intermittently beeps and the pump starts and stops several times before clearing out the water


On the controls to the pump there is a float, or 2 floats that control wheather the pump is on, or off. I don't know wheather this one has one float or 2 so i will give a short explanation for either fix.

Little giant usually has 1 float on a length of cord, or 1 float with a rigid frame that it goes inside, or has a guide rod. No matter which system is employed there is a built in dead band for the interval between when the pump turns on at a high level, and when it shuts off at a low level. If the float is on a rod, or in a cage it needs to be able to move freely. There is a method to control the turn on height, and the turn off height with some little clamps that connect to the switch. So when the liquid level gets high the pump turns on, and then when the liquid level gets to the lower limit the pump automatically shuts off. If these little keepers are right near the top of the float, and right near the bottom of the float then as soon as the pump turns on the liquid level drops just a bit, and the dead band is real small, so it just shuts right off. the liquid flows backward through the pump and then it turns back on, ect... If this is the case move the adjustments that surround the float. Presto.

If it has a little float on a cord then the adjustment for the level needs to be secured to the discharge pipe or something. It has a mercury switch inside the float to turn it on, and probably another to turn it back off when the float goes to a desired level just above the suction at the base of the pump. I would use black zip tie's to hold the cord so that the desired "turn on the pump level", and the propper "turn off the pump level" are what you want. Just hold the cord against the discharge pipe so that the float is above the suction opening to the pump, and the strait up level of the float are what you want.

If it has 2 floats on cords then one of the floats will turn the pump on if both are held upright by the liquid level. This float must be the top float that is mounted on the discharge pipe. If the 2 floats are mounted in the reverse position then the pump will cycle quickly. There will be a nearly nonexisting dead band. Both will be upright but the control circuit will shut the pump off when the top float, which should be on the bottom, lowers even slightly. Use the same method as perscribed above to attach the floats. The one that belongs on the bottom, the one that turns the pump off, should be placed so that the pump will shut off before it tries to pump air. the top float will turn the pump on if it and the lower float are both upright.

Presto.

Oct 27, 2010 | Little Giant TSW-SP-C 45 GPM - TSW Sump...

1 Answer

1985 Kawasaki GPZ600 carby flooding engine when


sounds like the float level is set to high and it is laeking out the over flow. try adjusting float level.

Mar 23, 2010 | 1987 kawasaki GPZ 500 S - GPX 500 R

1 Answer

My WD seems to flood when it is being driven, otherwise it idles fine. I can drive it about 200 yards and then it floods out. I have to drain the carburetor before it will start again. it has an...


It sounds like during the rebuild the float level some how was changed to a higher setting. There is a tab on the float that needs to be bent in order to change when the float valve actually closes. Seems your float valve adjustment is allowing the carb fuel level to be too high which will create the exact symptom that you described.
If the level is fine then there can be a small piece of debris in the float valve seat.
Also.. if the float itself has filled with fuel it can be too heavy to float and cause the float level position to remain low even when the carb is full not allowing the fuel supply to be shut off. If the new o-ring for the float valve was cut during installation it can also cause your current symptom.
At this point I just think that a float level adjustment is all that should be required.
with the float bowl screws loose the bowl should never overflow in a static condition. If it does the float level adjustment is off.

Thanks for using FixYa.

Kelly


Mar 19, 2010 | RTO Allis Chalmers Tractor WD-45 D17...

1 Answer

When i park my 78 xs 650 with the kickstand for a bit, when i lean it back up level gas comes out of the carb and down through the air cleaner box. Whats this?


The float level is too high or the float valve is being hung open by dirt or fuel varnish. First, turn the petcock to the 'off' position and then drain the gasoline from each float bowl by loosening the drain screw on the bottom. Close the drain screws and turn the petcock back on. Check to see if the problem is still there.
If so, then the float bowls will have to be removed and the float valves cleaned and inspected for wear. Also, take each float and shake it while listening for any fuel that may have leaked inside. Any float that has gasoline in it must be replaced. Upon reinstalling the float valves, check to see that the arms on the float are parallel to the float bowl gasket surface just as the float contacts the float valve. This is the correct float level. Adjust the bendable little metal tang on the float to achieve the correct float level.

Dec 01, 2009 | 1979 Yamaha XS 650 SF

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