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The primer bulb won't fill with fuel /when i try to prime the ut22600 it won't prime making it impossible to start

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: the primer bulb will not fill

the carb needs to be taken apart and cleaned out sometimes the screen gets blocked off from the fuel it gets crystalized or the pick up line from the tank is clogged im sure its the carb

Posted on Nov 14, 2008

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jgwhomeequip
  • 1902 Answers

SOURCE: 323L Husqvarna trimmer

This sounds like the carb needs to be adjusted like it is letting to much fuel into the cylinder. There is supposed to be fuel and air mixture in the cylinder to make it fire. If there is to much fuel what will happen is that it will just build up in there and the air wont get hot enough as it compresses to start the engine.

Posted on May 21, 2009

  • 376 Answers

SOURCE: Craftsman trimmer won't prime

A new carburetor would be simplest solution. You could try disassembling the carb, cleaning and replacing diaphrams, but just replacing the carb would be my choice. What is the model # on the trimmer and I can tell you the part # of the carb you need.

Posted on May 24, 2009

#1 Taper
  • 1040 Answers

SOURCE: Troy Bilt TB 465SS Pony 4 cycle weed trimmer won't start

Sounds like you need to take the carb. apart and clean it. I like to use a Den Tek Brush, (used for cleaning teeth), to clean the small ports in carb. they work great for this job. Make sure to either clean or replace the small screen in thcarb. as well.

Jim

Posted on May 26, 2009

  • 199 Answers

SOURCE: primer bulb won't prime

it sounds like the filter on the fule line is cloged try to remove the filter and then try to prime the trimmer. it it does you need to replace the filter. just about any filter that will fit will do.

Posted on Jun 10, 2009

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1 Answer

What is Wrong With a Stihl FS90R Trimmer When The Primer Bulb Won't Fully Fill After Priming?


1) check valves inside the primer plate is sticking
2) fuel pump diaphragm is varnished and flaps are sticking to the body of the carb
3) the cost of parts and time spent are more than a new carb
4) new carbs are updated versions and have updated ethanol resistant components
** suggest a new carb, it will solve several performance issues

Feb 19, 2017 | Stihl Garden

1 Answer

The primer bulb doesn't fill with gas


sounds like you hasve a cracked fuel line or a cracked primer bulb. that is why it cant prime.

Aug 29, 2015 | Swisher 190cc 22" String Trimmer Mower...

2 Answers

My prime bulb looses pressure and first start is hard. I have to remove fuel line from filter and cover with thumb prime re install then first start takes time.


Does the engine run fine after it starts? Most common problem with primer bulb losing prime is an air leak in the fuel line or primer bulb. Air leaks don't always leak fuel. If there is an air leak between the primer bulb and gas tank there is no pressure, only vacuum. If it is not a major leak it might not leak without pressure but it will allow air to enter the fuel line. If it is a very minor air leak it could allow air to replace the liquid in the fuel line over time, but so little air once it is primer again that the fuel pump can over come it with volume of fuel.

Primer bulbs do not stay firm, as they are when initially pumped up, after the engine is running. There are check valves in the primer bulb that hold pressure in the primer bulb and throughout the fuel line to the engine. Once the engine starts the fuel pump creates vacuum drawing fuel into the engine diminishing this pressure and releasing the check valves. At this point the primer bulb is just another segment of fuel hose allowing fuel to pass through it as the fuel pump demands. The primer bulb functions much better when the outlet side is higher than the inlet side. This position makes it easier for the check valves in the primer bulb to seat and release as needed. If the primer bulb is functioning properly and is positioned with the outlet side higher than the inlet it should not be necessary to cover the end of the fuel hose with your thumb to get it to prime.

If the engine is hard to start after being fully primed there could be a problem with the fuel system on the engine. Some engines are hard to prime once air has entered the system, especially fuel injected models.

Dec 19, 2014 | Boating

1 Answer

New primer bulb but engine won't prime


remove and clean the carby. clean out the main jet. ensure that there is nothing stopping the primer circuit from working. There are two valves under the primer bulb and a spring. when you push in the bulb fuel is squirted into the manifold When you take your finger off the bulb the spring pushes it out and new fuel is drawn past a valve to fill under the bulb. Pushing in again closes that valve and opens a second valve which allows the fuel into the manifold again

Apr 26, 2013 | Garden

1 Answer

Craftsman tiller won't start unless I manually prime cylinder with gas. There is no primer bulb. Can I retrofit a primer bulb in the gas line?


Hi
You can insert a primer system into your fuel system
Just follow the fuel flow below
Please take time to rate me
Bud
10_30_2012_8_59_23_pm.gif

Oct 23, 2012 | Craftsman Garden

1 Answer

Mantis tiller will not start. Cannot get primer bulb to draw fuel.I replaced all of the lines,primer bulb still won't work. Tiller will start by priming cylinder by removing spark plug. Help?


Make sure there are no leaks in the bulb. Did you reattach the fuel lijnes correctly? You should feel resistance after pushing 3 or 4 times to ensure fuel is getting to the carb. If necessary replace the bulb. Otherwise check with Mantis at www.mantis.com or give them a call for troubleshooting assistance.

May 22, 2011 | Mantis Gas Mini Tiller/Cultivator, 2 -...

1 Answer

Toro model number 200065 won't start. New gas, new spark plug, cleaned air filter. Doesn't feel like fuel is in the primer bulb when I prime it.


some toro primer bulbs don't fill up with fuel but blow air into a chamber in the carb that has fuel in it so when you press the bulb, the air sprays fuel into the carb ( just a little) So since it won't start, the bulb probably has a very small crack in it. replace it and then try it.

Aug 10, 2010 | Toro Lawn Mower With Toro Power Tools

1 Answer

PRIMER BULB WONT PRIME


I would recheck the carburetor to make sure you put the diaphragms next to the carburetor and not the gaskets.
Please if it is not priming you may have the fuel lines hooked up wrong. Also check the fuel cap to make sure the vent assembly is there. If the tank is not venting, the tank will get a vacuum in it not allowing fuel to flow.
HTH
Good Day.

Nov 11, 2009 | Homelite 'Yard Broom' Leaf Blower

1 Answer

Primer bulb won't prime


it sounds like the filter on the fule line is cloged try to remove the filter and then try to prime the trimmer. it it does you need to replace the filter. just about any filter that will fit will do.

Jun 05, 2009 | Troy Bilt Tb70ss Gas Trimmer

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