Question about McCulloch 14" Electric Chain Saw Mcc1514

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Where can I buy a fuel priming bulb, vinyl/soft plastic?

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You can go to the carburetor manufacturer's website and look for parts. You will need the numbers of the carburetor in order to get the correct one. Alternately, you can go to a mower shop near you and they should be able to get you one or point you to a place that will have the part you are looking for.

Posted on Mar 31, 2011

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Posted on Jan 02, 2017

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1 Answer

Which fuel line goes to which plastic input on the snap in primer bulb kit?


Hi Tom:
Routing is:
- tank to carb
- carb to primer
- primer to tank
The primer sucks fuel from the tank through the carb, thereby priming the carb.
If you squish the bulb, the "out" goes to the retun lint to the fuel tank.
Hope this helps.

Sep 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

2 Answers

Why does my50 hp merc run ut of fuel after about 20 min bulb gets soft ?


You may have a minor air leak in the fuel supply system. Over a period of time, the system draws in enough air that the pump looses it's prime.

Jul 04, 2014 | Raymarine Linear Feedback Unit For...

1 Answer

90HP Yamaha won't turn over


It sounds like you have a air line busted somewhere i had one of my outboards do that it wouldnt prime for anything so i ran everything down checked the fuel pump and cleaned that out tore apart the carbs cleaned them bought brand new fuel hose still scratching my head i took off the air lines for the carbs and put new ones worked like a champ

Aug 22, 2012 | Boating

1 Answer

When I push the bulb to prime the weedeater nothing happens.


It helps to know the purpose and function of the purge/primer bulb. It is designed to draw fresh fuel out of the fuel tank (line with in-tank fuel filter) and send it directly to the fuel pump side of the carburetor. Also, it's vacuum effect helps out it's next function of drawing any air/old fuel out of the carburetor from the metering chamber and sending it back to the fuel tank after it passes thru the bulb itself. This is how a remote primer bulb functions. It doesn't have to be completely full of fuel for the engine to run either.
So, you need to check 1. The fuel filter in the gas tank 2. The condition of the fuel line connected to that filter (the line should be soft and clear, not yellow and brittle). 3. The status of the fuel inlet on the carburetor (open). 4. The condition of the fuel line from the carb to the primer bulb
5. The condition of the primer bulb and its' plastic fittings. (the bulb shouldn't have any cracks or be severely discolored . These things apply whether the bulb is a stand alone type or mounted on carb type.
Carburetor mounted bulbs develop their own unique problems of operation due to the check valves that control fuel flow below them in the primer base assembly of the carburetor. Those valves are fragile and sometimes fail (strong solvents and high air pressure ruin them) and the fuel doesn't move back and forth properly causing carburetor malfunction.

Oct 25, 2010 | Homelite Mighty Lite Lawn Trimmer

1 Answer

No gas to carb


There should not be a vent hose--it probably goes to a port on the primer bulb. Check the fuel filter for plugging and the condition of all fuel lines (they should be original rubber, not plastic replacements). Try priming the carburetor with the bulb pump--it should pull fuel into the bulb after several pushes. If nothing, check the condition of the primer bulb--it should be soft without cracks or holes.The primer is supposed to pull fuel from the tank's fuel filter, into the carburetor top section, pass into the lower section through the metering valve which is controlled by the diaphragm, then out to the input port of the primer and out the other primer port to return fuel to the tank. Go to: http://www.drystacked.com for an excellent 12 page article on theory and troubleshooting of Walbro carburetors. Hope this helps!

May 16, 2010 | Poulan Reconditioned Chain Saw 33cc 14in...

1 Answer

Where is the fuel filter on a x5 diesel


Its under the bonnet, Pop the bonnet, as you stand facing the engine its up high on your right, the cars left side. its found by following the black plastic air intake to a mini radiator sort of thing which is the fuel cooler. the Fuel filter is the silver, soft drink can sized thing just behind that mini radiator thing. Its clamped around by a clamp which is tightened by an Allen key/Hex head thing, which is a common size in any set you would buy from any auto store. use a Phillips head screw driver to loosen the two flexible fuel lines and disconnect them. Unclip the plastic sensor from the top of the filter with thumb and fore finger and slide the old filter up and out. Reverse to replace. When everything is redone turn the key to the on position while the pump primes the filter and check for leaks. These should be done every 3-4 oil changes. Happy motoring!

May 05, 2010 | 2005 BMW X5

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

After removing filter carburator is exposed


Replace entire primer bulb assembly. You might replace hose going to it as well. Extended sunlight kills plastics.

Jun 29, 2009 | Garden

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