Tip & How-To about Garden

Fuel Line Relacement for Trimmer/Weedeater

If your engine starts, sounds great for a few seconds and then quits, or runs on half choke, then you probably have cracked Fuel Lines. They can become brittle over time and will need to be replaced. The Fuel Lines may look fine around the carburetor, but make sure that you look inside the fuel tank as well. This is where they are more prone to break. The fuel tank should be empty, so as to do a more thorough inspection of the Fuel Lines.

Another reason why it may only run on half choke is because the Fuel Lines don't fit properly into the holes of the fuel tank. If there is a small leak around one, or both of them, the machine will not run properly.

One Fuel Line Instillation: (This usually only applies to Leaf Blowers.) This is not hard to figure out. Fuel Line goes from carburetor to fuel tank.

Two Fuel Line Instillation:
In this installation, the primer bulb is attached to the carburetor.

The longest, and sometimes smaller in diameter of the two Fuel Lines, goes from the bottom of the carburetor, to the bottom of the tank. (
The first line will need to be longer so that you can pull it all the way through to where you put gas in.) This so that you can easily attach the fuel filter. Then pull the Fuel Line back through the hole. Leave enough slack in this line so that the filter that attaches to the end will rest comfortably at the bottom of the tank. Cut off any excess line once you know that you have enough to reach the carburetor.

The other Fuel Line goes from the primer bulb to just inside the tank,(about a 1/2 inch). (Make sure that you get the right size fuel lines.) The plastic coupling goes on the end of this line, inside the tank. This keeps the line from pulling out of the tank.

(HINT): When feeding the Fuel Lines through the fuel tank holes, cut the lines at an angle. They will feed much easier into the holes. You can than cut them off square, once you know that you have enough to work with.

Three Fuel Line Installation: In this installation, the primer bulb is separate from the Carburetor.

The (1st) Fuel Line will be the longest, and sometimes smaller in diameter of the (3) Fuel Lines. It goes from the bottom of the carburetor, to the bottom of the tank. (The first line will need to be longer so that you can pull it all the way through to where you put gas in.) This so that you can easily attach the fuel filter. Then pull the Fuel Line back through the hole. Leave enough slack in this line so that the filter that attaches to the end will rest comfortably at the bottom of the tank. Cut off any excess line once you know that you have enough to reach the carburetor.

The (2nd) Fuel Line goes from the top stem of the primer bulb to just inside the tank,(about a 1/2 inch). (Make sure that you get the right size fuel lines.) The plastic coupling goes on the end of this line, inside the tank. This keeps the line from pulling out of the tank. This will be the shortest of the three Fuel Lines.

The (3rd) Fuel Line goes from the bottom stem of the primer bulb to the top of carburetor.


However, if the Fuel Lines are in good shape, and the primer bulb doesn't have any cracks, then you will need to do a thorough carburetor cleaning. In this case, click on this link: ( www.fixya.com/support/r6081405-cleaning_small_engie_carburetor )

Good Luck!

If you should have any questions about"Drywall Finishing/Patching", or know someone who does, put your questions to Category:"Tools- Building & Power- HAND TOOLS" at FixYa.com

I will do my best to answer your questions about drywall finishing. However, it would be best if we could speak on the PHONE or do a live CHAT. I can answer any question you have if it involves getting a wall ready for paint!

Thanks for looking,

Jim

Key Words: Weed Eater, Trimmer, Chainsaw, Leaf Blower, Snow Bower, Pressure Washer, & Varnisized

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1 Answer

my craftsman starts and runs great,but when I start cutting it dies. it's new ran 1 gallon of gas through it.


Does it help if you keep the choke closed about half the way ? If it does check for a bad fuel line. I have had new ones with cracked fuel lines do this.

Oct 27, 2013 | Craftsman Garden

1 Answer

I fixed one featherlite trimmer by replacing the feul lines but the other one starts running after being primed by the bulb and will run for 3 seconds or so and quit. Any suggestions for what to try next?


  • Alow the engine to run for longer on the start setting before you switch to run (choke turned off)
  • Ensure air filter is clean. Foam elements can be washed with hot water and detergent, squeezed dry in a cloth, and then rub about half a teaspoon of oil evenly through the foam. Paper elements can be cleaned with compressed air blown from the inside of the filter but ideally should be replaced.
  • Check fuel lines aren't kinked or blocked restricting fuel flow.
  • Ensure fuel filter isn't dirty. This is probably located at the end of the fuel line in the tank.
  • The fuel lines may have become airlocked.This can happen if the tank is run dry. If the trimmer has a primer bulb, alternatively press it several times and then try to pull start the engine with choke on. Repeat this several times. The primer bulb should feel spongy and fill with fuel.Once the engine kicks, switch to run
Ensure the choke is turning off ok when you rev the machine (automatic turn off choke)
Have a look at these tips also :

http://www.fixya.com/support/r9230929-weed_eater_strimmer_will_not_start

Jun 13, 2011 | Garden

1 Answer

My Ryobi start great but when I change it from start to run stays few seconds and died


  • Alow the engine to run for longer on the start setting before you switch to run
  • Ensure air filter is clean. Foam elements can be washed with hot water and detergent. Paper elements can be cleaned with compressed air blown from the inside of the filter but ideally should be replaced.
  • Check fuel lines aren't kinked or blocked restricting fuel flow.
  • Ensure fuel filter isn't dirty. This is probably located at the end of the fuel line in the tank.
  • The fuel lines may have become airlocked.This can happen if the tank is run dry. If the trimmer has a primer bulb, alternatively press it several times and then try to pull start the engine with choke on. Repeat this several times. The primer bulb should feel spongy and fill with fuel.Once the engine kicks, switch to run.

Apr 05, 2011 | Ryobi Gas Hedge Trimmer

2 Answers

my leaf blower runs at half choke but only for a little while. Move it to choke off and it dies


This sounds like a fuel delivery problem. Check the fuel filter and also the carburetor bowl and main jet. Make sure the fuel lines and the carb are clear and clean.. Carb may need to be removed and cleaned....it's not picking up the fuel and delivering it to the engine. There may be some small debris that has entered the carb and is stopping the complete flow of fuel.

Jul 06, 2010 | Craftsman 4 Cycle Blower/Vac

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