Question about Ryobi 30 Cubic Centimeter Curved Shaft Gas Trimmer

Open Question

Primer bulb doesn't fill but pressure builds in tank. Pump makes a whistling sound.

Posted by on

3 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 9 Answers

SOURCE: My ryobi will start but dies about 5 minutes later

Try running the machine with the gas cap loose. There could be pressure builiding up in the system due to the cap being too tight. There is no vent on these systems like an automobile. If the gas cap is overtightened this could be your problem as the cap is equipped with a gasket that allows the vapor to vent through the cap. Overtightening could be sealing off your vent

Posted on Jun 06, 2009

canbruce75
  • 1776 Answers

SOURCE: Fails to stay running / primer bulb does not fill

Double check that the fuel lines are routed properly. Another place to look for a potential problem is where the fuel line comes out of the tank. Make sure the hose is not pinched. The typical fuel line routing is the first line (the one with the fuel filter in the end of it) comes out of the tank and goes to the bottom fitting on the carburator. The second line comes out of the tank and goes to the bottom fitting on the primer bulb and the third line goes from top fitting on primer bulb to top fitting on carburator. Hope this helped and best wishes.

Posted on Sep 04, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

The primer bulb on my Husqvarna 235e chainsaw will not fill. Why?


Number of reasons for the primer not filling, But i'll go with this one as you say the tank is under pressure.

Faulty primer. The primer has a couple of one way valves in it, so it sucks up the fuel while expelling the air in the line. Id say that the valve in the primer has failed and instead of pumping up the fuel you're pumping air into the tank. The replacing the primer. part number 545 00 80-30

Apr 17, 2016 | Husqvarna Garden

1 Answer

Craftsman weedwacker model #358797150 will not pick up fuel


Have you checked the fuel filter and made sure it is not plugged. Make sure the primer bulb is not cracked or leaking pressure. If you have then I would be sure the fuel cap is not bad. To check the cap you should be able to put the cap on the tank pump the primer button to build pressure in the tank and then turn the cap a turn or so and hear the pressure release. If that is all ok then I would think the diaphragm in the carb is bad and the carb needs to be rebuilt.

May 22, 2014 | Craftsman 29cc 4Cycle Straight Shaft...

1 Answer

Stihl chainsaw primer bulb will not fill. Puts pressure in fuel tank


try switching the tubes on the back of the primer bulb

Nov 12, 2013 | Stihl Garden

1 Answer

How to replace fuel lines on homelite ut20811b gas trimmer


If there are two different size lines in the tank the smaller one is the main fuel line. The main fuel line will have the filter on the end of it in the tank and the filter should lay flat on the bottom of the tank. The main line will go directly to the carb on the fuel pump side. It is very difficult to describe and I dont have a way of giving a picture. If you have had the carb opened up the fuel pump side is the side that is mostly flat with holes and the dighram with the flaps.
The other nipple; usually more toward the center of the carb body, will go to the primer bulb. The primer bulb will have 2 different length nipples. The longer one is out to the tank, the shorter one is in from the carb. There is no need to have more than a half inch of line from the primer into the tank. when hooked up properly; as you press and release the primer bulb it will draw fuel up the main fuel line into the carb and fill the carb with fuel then from the carb to the primer bulb and fill the primer bulb with fuel then the excess fuel will be returned to the tank from the primer bulb.

Oct 22, 2012 | Homelite Mighty Lite Lawn Trimmer

1 Answer

Which gas line goes to which connecter on the carb? I disassembled to clean and it's having pressure issues. The tank is filling with pressure and the bulb won't retain enough gas to keep the


The thing to remember is that the primer pulls fuel from the carb into the bulb and dumps back to the tank, it does not push fuel into the carb, connect the fuel line from the tank to the carb connection nearest to the alluminium pump cover held with a single screw, the other one goes to the shorter of the two connections on the back of the primer.

Jul 07, 2012 | Craftsman 25cc Gas Line Trimmer

1 Answer

McCulloch 28cc Gas Blower MB3200, it doesn't appear to be getting gas from the lines INTO the carb... You can pump the primer bulb but it WILL NOT push it into or out of the carb... Any help???


The primer should pull fuel out of the carb, into the bulb and dump it back to the tank, if the fuel filter in the tank is blocked, or the fuel hose is split no fuel will enter the carb, so the primer will not fill, replace the filter and the fuel hose.

Jun 01, 2011 | Garden

2 Answers

I'm trying to get an old weedeater/poulan 22" excalibur hedge trimmer running for my son. In the past someone has cut a fuel line going to primer bulb. I replaced that line and when I use the primer...


There are 2 different set ups for fuel lines on these 2 stroke carburetors. One has a remote primer/purge bulb and the other has the primer/purge bulb on top of the carburetor. Here are instructions on how both kind work and how to service them.

The small diameter line out of fuel tank (has filter in-tank on end) connects directly to the side of the carburetor that has the fuel pump....that is the cover without the hole in it. Other larger diameter fuel line out of tank connects to the longer nipple on the external purge/primer bulb. The bulb "pulls" fresh fuel from the fuel tank to the carb and then out of the carb to itself, where it then "pushes" any air/old fuel back into the fuel tank. The remaining larger diameter fuel line in this setup goes from the metering chamber (has cover with writing on it and a vent-hole) side of the carburetor to the smaller nipple on the purge/primer bulb. Again, on the primer bulb, the longer nipple has a line going directly from it to the tank. This is the return line. The shorter nipple on the bub has a line from it going to the metering chamber side of the carb. If the purge/primer bulb is on top of the carb...small line from carb body to small hole in tank with filter. Larger diameter line goes from the bulb on the fuel pump side of the carb to the larger hole in the fuel tank where sometimes the line is held in place with a nylon nipple connector that keeps the line from pulling out of the tank. Otherwise, the line should enter the tank for about 1/2" or so If you have any more questions, please post back. I will see your comment and be glad to help you,

Apr 23, 2011 | Poulan Ght225 25cc Gas Hedge Trimmer

1 Answer

Fuel dont get in carbruator put gas in the carb thru the choke it starts but dies .i put a new gasline in it and a new carb kit Why dose pressure build in the fuel tank i removed the fuel line and gas...


When you prime/puge your carburetor, make sure fuel (w/ no air) is moving from the fuel tank towards the body of the carb. Also, make sure that there is fuel/air bubbles leaving the primer bulb and going back towards the fuel tank...and that when you push the bulb down and release it, there is no fuel movement in either line. If fuel does move when letting up on the bulb, you either have the fuel lines reversed or, the check valves in the primer base assembly are not functioning. The primer/puge valve's funcion is to draw fresh fuel into the fuel pump side of the carb and to push old fuel/air from the metering chamber side of the carb back to the fuel tank. Here is proper fuel routing:
This is an ongoing issue for users, and rightfully so. Small diameter line out of fuel tank (has filter in-tank on end) connects to the side of the carburetor that has the fuel pump....that is the cover without the hole in it. Other larger diameter fuel line out of tank connects to the longer nipple on the external purge/primer bulb. The bulb "pulls" fresh fuel from the fuel tank to the carb and then out of the carb to itself, where it then pushes any air/old fuel back into the fuel tank. The remaining larger diameter fuel line in this setup goes from the metering chamber (has cover with writing on it and a vent-hole) side of the carburetor to the smaller nipple on the purge/primer bulb. Years ago on 2-stroke trimmers, primers were not even used,...you choked the carb with a slide lever and gravity let fuel enter the carb from above...a few pulls, a "pop"...slide it off of choke and away you went.
If the purge/primer bulb is on top of the carb...small line from carb body to small hole in tank with filter. Larger diameter line goes from the bulb on the fuel pump side of the carb to the larger hole in the fuel tank where the line is held in place with a nylon nipple connector that keeps the line from pulling out of the tank.

Sep 03, 2010 | Homelite Garden

1 Answer

Will not start


That seems to imply that the check valves in the primer pump and in the fuel pump section of the carburetor are bad or the air pressure just forced by the valves. The line without the filter is the tank return line from the primer pump. The primer pump is supposed to pull fuel from the fuel filter into the carburetor flooding all spaces within it it, then passing out to the primer pump and from there, back into the tank. Does the primer bulb fill with fuel after several pumps? The first try may take longer because you forced all of the fuel out of the carburetor with the air pressure. Make sure all of the carburetor fasteners are tight. It's possible that you have injured the diaphragm in the carburetor lower chamber when you blew air into the line. Go to: www.drystacked.com for a 12 page article on Walbro carburetor theory and troubleshooting. Make sure the spark plug gap is set at 0.020". Hope some of this helps!

Jun 22, 2010 | Homelite Consumer Products 9.0 Amp, 14 In....

1 Answer

There are 3 fuel lines on my Poulan 2150, 2 - 1/8"...


The 'vent looking device' should be the fuel filter--remove it and make sure it is not plugged. The other end of that line should go to the carburetor inlet port near the top. When you get the line connected, pump the primer several times (tank is filled with fuel mix and the small line returning to the tank is pulled loose from the primer port) to see if it pumps fuel through the carburetor into the primer bulb. If it does not, swap the line from the carburetor to the other primer port and retry pumping again. If fuel fills the bulb, then plug the line from the tank to the vacated port on the primer. This will pump excess fuel back into the tank. Hope this helps!

May 17, 2010 | Garden

Not finding what you are looking for?
Ryobi 30 Cubic Centimeter Curved Shaft Gas Trimmer Logo

Related Topics:

317 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ryobi Garden Experts

Nick Olsen

Level 2 Expert

183 Answers

Rexter1

Level 2 Expert

40 Answers

Roland W VanLue
Roland W VanLue

Level 3 Expert

486 Answers

Are you a Ryobi Garden Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...