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Priming bulb leaks and needs replacing - Yard Machines Cultivator

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I found the manual on line and ordered the bulb and hose assembly. I still have to install it, but it looks easy enough. Thanks for getting back to me. Now I know where to find help if I get stuck.

Clyde the honey man

Posted on Oct 02, 2009

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Posted on Jan 02, 2017

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1 Answer

Why does the carb not prime with fuel?


Check the primer bulb. If it has a small hole or leak it will not generate the suction with which to suck the gas in to them prime the engine. And make sure that the top of the carb with the bulb is firmly attached to the rest of carb to prevent any base leaks by the primer.

Sep 20, 2015 | Garden

1 Answer

Does not prime


Make sure that the priming bulb is not broken - if so replace. If bulb is good then the carb check valve is no good and the carb has to be replaced.

Jun 05, 2015 | Garden

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Primer bulb not pumping fuel into carb, pull it out, no splits etc. Once I get fuel in it starts and runs fine??


Probably a valve in the priming system is stuck. It allows fuel to flow into the bulb from the tank, the valve should close then and allow the bulb pressure to spray into the carburetor. Could also be the opening into the carburetor from the prime bulb is blocked.

Mar 27, 2015 | Garden

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

Fuel leaks bulb not priming.


If you have a leak the bulb will not prime. Over time the either the rubber on the primer bulb gets a pin hole in it requiring bulb replacement or one of the fuel lines cracks and introduces air into the lines. Unless the system is completely sealed the primer bulb will not work. Make sure all of the connections on the fuel lines are tight and correct the system leaks.

Thanks for choosing FixYa.

Kelly

Aug 27, 2010 | Ryobi Snap In Primer Bulb Pump 683974 ...

1 Answer

Replace poulan 2150 chainsaw prime bulb


You can use this site to find a Poulan service center or order parts:
http://www.poulan.com/

May 30, 2010 | Garden

1 Answer

What will caus a primer bulb to leak gas directly from bulb on a craftsman snow blower ? I open the fule line at the tank and prime to start engin. Primer bulb leaks fule at center hole till i shut off...


Your primer bulb has a small hole in it, due to dry rot, you can take the bulb off and replace it with a new one very easy to replace, 4 screws, it is like a gasket.

Dec 07, 2009 | Audio Players & Recorders

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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