String Trimmer Help

Caryc

Well-known Member
I have a 4 cycle engine Ryobi string trimmer that was running fine and all of a sudden it would start dying at full speed. I took the plug out and cleaned it. It had fresh gas in it. Nothing helped. Then I noticed air bubbles in the fuel line. I removed the gas tank cap and I found the part you see below in there. It was not connected to anything.

What is this part and what does it do?

dh7Kerd.jpg


This post was edited by Caryc on 03/28/2023 at 05:29 pm.
 
Richard is correct. The fel line from the carburetor to the tank has broken or the fitting at the tank had=s deteriorated. Take it to a shop if you cant figure out how to thread the hose on the fitting. Jim
 
I removed the gas tank cap and I found the part you see below in there. It was not connected to anything.

What is this part and what does it do?

dh7Kerd.jpg


This post was edited by Caryc on 03/28/2023 at 05:29 pm.

i will have nightmares tonight now. i had forgotten about how this happened to me. as richard says, it's your fuel pickup. i had to manufacture a couple of custom tools and then swear [i:a3b7dfabbb]a lot[/i:a3b7dfabbb]. i hope you have an easier time with reassembly than i did.

i'm in the process of switching all that stuff over to electric from gas.
 
(quoted from post at 17:52:48 03/28/23)
I removed the gas tank cap and I found the part you see below in there. It was not connected to anything.

What is this part and what does it do?

dh7Kerd.jpg


This post was edited by Caryc on 03/28/2023 at 05:29 pm.

i will have nightmares tonight now. i had forgotten about how this happened to me. as richard says, it's your fuel pickup. i had to manufacture a couple of custom tools and then swear [i:7c2b5e5e29]a lot[/i:7c2b5e5e29]. i hope you have an easier time with reassembly than i did.

i'm in the process of switching all that stuff over to electric from gas.

I have a 40 volt ryobi trimmer that I use. I bought it a week or so after the ryobi gas trimmer. My nephew was using my gas trimmer because he doesn't like to keep running out of battery power on his string trimmer.

I don't see how I'm going to get that pickup connected. I can't even see anything that it is supposed to connect to.
 
The fuel line broke off where it went through the fuel tank. You need a new fuel line. Probably a fuel filter wouldn't hurt. Also, you need
to check the screen just inside the carburetor inlet. If you ran it much there will probably be trash there.
 
Looks like you are going to need a new fuel line. While you are at it might as well replace that filter too. Seems like nothing they make today can hold up to the ethanol gas.
 
The fuel line may not connect to a fitting at the fuel tank. If
theres a rubber grommet on the tank, it may just pull through
and then connect directly to the carb. Thats how my Honda and
echo trimmers are. If thats the case, just push the fuel line into
the small hole from the outside of the fuel tank when you get
enough into the fuel tank hook it with a piece of wire pull it out
of the tank and put a filter on it, connect the other end to the
carb.
 

Use Tygon fuel line , it won't perish like rubber does and is slipperyer so easier to thread through . If the line goes through a grommet fit it through the grommet first , then fit the grommet to the tank , much easier that way as the grommet sqeezes down when in place and it's hard to push the line though.
 
(quoted from post at 20:22:30 03/28/23)
Use Tygon fuel line , it won't perish like rubber does and is slipperyer so easier to thread through . If the line goes through a grommet fit it through the grommet first , then fit the grommet to the tank , much easier that way as the grommet sqeezes down when in place and it's hard to push the line though.

So, I guess you guys are saying that I have to remove the fuel tank to do it?
 
(quoted from post at 17:55:43 03/29/23)
(quoted from post at 20:22:30 03/28/23)
Use Tygon fuel line , it won't perish like rubber does and is slipperyer so easier to thread through . If the line goes through a grommet fit it through the grommet first , then fit the grommet to the tank , much easier that way as the grommet sqeezes down when in place and it's hard to push the line though.

So, I guess you guys are saying that I have to remove the fuel tank to do it?

Not necessarily, it really depends on the design . I've changed many without removing the tank but in most cases the tank is only held on by one or two small bolts . A job of 10 minutes to remove and replace .
 
If the grommet is accessible just pop it out and thread the new fuel line through it, pop the grommet back in, fish the end of the line out of the tank with a hook shaped wire and install filter on the end. Other end of the line slips onto the carb. Make sure there is enough extra line in the tank so the filter can move around. It is weighted to move with the fluid and stay submerged.
 
If you use new fuel line, cut the end that you are going to feed through the grommet at an pointed angel so you can get it started in the hole.
 

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