Question about Homelite Mighty Lite Lawn Trimmer

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Hi wheni push the primer to get fule into it it doesnt **** up fule but you can hear it sucking air,,,,,i have checked the plestic lines that run from the tank to the to of the carby ???? and when i detach them fule runs every where,

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The primer bulb is probably damaged. You can purchase one at a Homelite parts dealer near you. If the problem persists it is suggested you take it to a repair service.

Posted on Mar 31, 2011

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How du i conect fuel lines jonsered 353

On your saw (if equipped with primer bulb) push the bulb in, one nipple is pushing air out and when you release the bulb the other nipple will pull air in.
When pushing in the bulb, the line that forces air out is your return line to the fuel tank. The nipple drawing air in is the inlet line connect this line to your fule filter.

Oct 16, 2014 | Garden

3 Answers

Craftsman 550

Priming may not be the problem. First try putting some duct tape over the hole in the primer button. then try priming and subsequently starting it. This could indicate a need for a new air filter...I know it doesn't make sense, but it will probably be the answer to your problem. It was with mine although a different type of mower.

Jul 21, 2014 | Mtd 22" Yard Machine Push Mower

1 Answer

Ariens 5520 snowthrower only runs if i rapidly push primer button

check for cracked fuel line.
Could be sucking air in with fuel starving engine of fuel.
Does float in carb operate correctly?
Float maybe full of fuel.

Feb 14, 2014 | Garden

1 Answer

I have a poulan PP4218 and after replacing the priming bulb my chainsaw will not run. When trying to start itwith the full choke out, it remains running hen it should just go off. Then push in one knotch...

first off are your lines hooked up correctly at primer bulb? secondly if your diaphram is making snapping noise when you push on it then replace it!! it should be very flexible and not snap when pushed on. next remenber that THE LINE COMING FROM TANK WITH FILTER HOOKS TO CARB THEN FROM CARB TO PRIMER SUCTION NIPPLE THEN. FROM PRIMER PRESSURE SIDE BACK TO when you push it you can watch fuel squirt into tank everytime you push it and then you know it is sucking it through the carb and back to tank. hope I have explained this good enough to you good luck

Jul 27, 2011 | Poulan Pro 42CC 2 Cycle Chainsaw, 18"

1 Answer

I have a homelite gas trimmer and i replaced both feul line on in the one bigger line goes into the tank and rests on the bottom and the other smaller has a fitting it slides on to on top of the tank the...

the fule lines need to be a good tight fit or the lift pump will pull in air not fule check there a very good fit from the tank pick up to the pump

Aug 10, 2010 | Homelite Garden

1 Answer

Troybilt trimmer primer bulb collapses. it will start occasionally but will only run a few minutes.i have replaced the primer bulb and gas lines and still have the same problems.

it should have a small vent in the fule tank cap if its blocked the primer bulb will be sucked in as the fule pump can **** any fule from the tank
check the tank cap first,,,,,

Aug 08, 2010 | Troy Bilt Tb70ss Gas Trimmer

1 Answer

I have a roybi 31cc weed eater and the fule line has become brittle and has broken apart. I need to know the layout of the new plastic fule line. I purchased a new fule line at Lowe's. I do not know wich...

STEP (1) The fuel supply line has the filter attached inside the fuel tank. The other end of that line goes on the carburetor's SUPPLY NIPPLE.

STEP (2) Determine the primer bulb's flow direction by pumping it under water. The unused nipple on the carb (IF STEP 1 WAS DONE CORRECTLY THERE IS ONE UNUSED NIPPLE STILL AVAILABLE ON THE CARB) will have a section of fuel line attached to it and running to the SUCTION NIPPLE (or pull-side, as some techs call it) of the primer bulb.

STEP(3) The final piece of fuel line goes from the OUTPUT NIPPLE (or push-side, as some techs call it) of the primer bulb and is routed back into the fuel tank as a return.

If plumbed properly, the primer should PULL fuel thru the carb and NOT pump any fuel into the engine. Excess fuel should be pumped back into the tank on each and every press of the primer.

Hope this helps!

Sep 28, 2009 | Garden

1 Answer


Run a small paperclip into the fitting that the fuel line is attached to on the back of the primer bulb and make sure it is clean. Then go to the other end of the equation and make sure that the fitting is cleaned out on the carb where the fuel line attaches. Hope this helps and good luck.

Jul 11, 2009 | Garden

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

1 Answer

I changed the fuel line going from the fuel tank to the primer bulb and now my weedeater will not stay running and my primer bulb is not holiding fuel.

Make sure the fuel line is a good fit to the carb. ... If is sucking any air at all it won't run right.. Also check that the fuel line in the tank is still hooked up...

May 20, 2009 | Ryobi Garden

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