How to tell where to correctly connect what fuel line on a weed eater, trimmer, leaf blower or edger

Where do the fuel lines go? How do they get routed? Which line does what? Which line connects to the fuel filter? This video will answer those questions. Please like, share and subscribe.
How to tell the suction line vs the return lines on a 4-cycle weed eater, trimmer, blower or edger:
THE SUCTION LINE
1. Cover one of the ports with one of your fingers on the carburetor and press the primer bulb. If fuel comes out of the other port, then the port that you covered is the SUCTION line and this is where the suction line should connect that connects to the fuel filter in the gas tank
THE RETURN LINE
2. If gas is in the primer bulb and you cover a port on the carburetor and you press the primer bulb
and no gas comes out of the other port, then the port that you covered with your finger is the return line and this is where the return line should be connected that goes about an inch deep into the gas tank. This line DOES not connect to the fuel filter.
GENERAL WAY TO DETERMINE SUCTION VS RETURN LINE
Put some gas in the gas tank. Attach a fuel line to any of the ports on the carburetor and insert it into the gas tank. Press the primer bulb on the carburetor and if you see gas being sucked up into the carburetor, then you have connected the fuel line to the suction port on the carburetor. This is the line that should be inserted all the way down into the gas tank with the fuel filter on it.
+ If you connect the fuel line to a port on the carburetor and insert it into the gas tank and press the primer bulb and it shows fuel going from the carburetor back into the gas tank through that line, then you connected the fuel line to the return port. I hope this helps with proper routing of fuel lines on a 4-cycle weed eater, blower, trimmer or edger, etc.

[@Rein_Ciarfella]

You just clarified something for me that I’ve been wondering about for a while - how to easily determine the correct function of the ports on a carburetor. Thank you!

[@woowaptibam5253]

Thank you I had to stop mid repair and got sidetracked. Figured a quick CZcams tutorial would help. Your video was the third video I came across, and yours was the best. Thank you for your help.

[@stewartbruce8902]

Excellent job of suction and return fuel line. I believe you meant to say 2 cycle engine as opposed to saying 4 cycle. Probably best to describe as small engines chainsaw, edger, blower, hedge trimmer, string trimmer etc. All the best and thank you.

[@GoogleUser-nx9ku]

Yes, you kept calling it a 4 cycle when i was a 2 cycle

[@drslick1198]

Great job explaining it. A very big help when you inherit a piece of equipment with no documentation. Very useful.

[@pastorlugo121]

Outstanding video. I was just giving a TroyBilt trimmer with the lines gone. Your video just showed me how to solve this puzzle. Thank you so much.

[@larrynelson7839]

This is a great video. Thanks for making. Don't let the turkeys get you down. In my gas, my back pack leaf blower is at least 10 years since I last used it. The two lines (suction and return) that are outside the fuel tank are both cracked. The portion of the lines that are inside the fuel tank had actually rotted away. The fuel filter was sitting in the bottom of the fuel tank with no lines connected. The owners manual did not identify which line was which. So your video was perfect. Thanks for making it. GREAT STUFF!

[@christophersharp7198]

OMG!!! Thank you SOOOO MUCH!! Recently replaced my worn out fuel lines and fuel filter and I clearly put the fuels lines on backwards after seeing this. Keep up the great work!

[@Anthony-hu3nc]

That was a excellent description of where the hoses for the few line go thank you very much

[@Jayson90210]

Thank you, Thank you!!! You just cleared up a huge question for me that all the other videos failed to address! I can now go fix my leaf blower!!! Sorry for the negative comments from others..maybe it was just frustration on their part?, but you handled it like a pro and a gentleman. Thanks again! 👍👍

[@marcobrownstone]

Thank you so very much for this simple explanation, example and demonstration. Most helpful.

[@sageminentjunky5197]

Thank you. As soon as you started to explain by pushing the bulb i knew what to do. Perfect explanation thank you

[@williamrobinson604]

Thank you for clarifying how far the lines extend into the gas tank.

[@philliphall5198]

It’s very important to remember this

[@michaelsteakley3898]

I apologize on behalf of all the people who were rude or disrespectful. Good video and thanks for taking the time to make these videos to help people. It is often difficult to cover each and every detail. Especially, those that are so easy, only a foolish person would need because they for got to take a picture before they took it apart.

[@samuelobregon5521]

This is the answer I needed, and yes you explained very clear. Thank you sir.

[@DIYOneForAll]

THE SUCTION LINE
1. Cover one of the ports on the carburetor with one of your fingers and press the primer bulb. If fuel comes out of the other port, then the port that you covered is the SUCTION line and this is where the suction line should connect that connects to the fuel filter in the gas tank
THE RETURN LINE
2. If gas is in the primer bulb and you cover a port on the carburetor and you press the primer bulb
and no gas comes out of the other port, then the port that you covered with your finger is the return line and this is where the return line should be connected that goes about an inch deep into the gas tank. This line DOES not connect to the fuel filter.
GENERAL WAY TO DETERMINE SUCTION VS RETURN LINE
Put some gas in the gas tank. Attach a fuel line to any of the ports on the carburetor and insert it into the gas tank. Press the primer bulb on the carburetor and if you see gas being sucked up into the carburetor, then you have connected the fuel line to the suction port on the carburetor. This is the line that should be inserted all the way down into the gas tank with the fuel filter on it.
+ If you connect the fuel line to a port on the carburetor and insert it into the gas tank and press the primer bulb and it shows fuel going from the carburetor back into the gas tank through that line, then you connected the fuel line to the return port. I hope this helps with proper routing of fuel lines on a 4-cycle weed eater, blower, trimmer or edger, etc.

[@joemusicman64]

This was a great video. I removed my lines without paying attention and this video told me how to identify the connections. Awesome.

[@Greenwithao]

Thanks for the video. I replaced the carb on my weed eater and forgot to mark what was what.

[@freedomforever8168]

thanks ,was searching for this simple explanation ,wish I could meet you ,delighted

[@roborylan7094]

thank you for the clear explanation. now I know what that extra line is for. my trimmer will run great now!

[@bella5gpapa]

I enjoyed your video. It was well explained . thank you

[@handy1014]

Thank you. A lot of people don't elaborate on this subject. Good job

[@RedRoyce]

Thanks, It help me to find the right line to put on what. My old weed eater had been in the shed for a few years and I went to check it out just touched the fuel lines and off they came but I didn't know for sure what went to what but this video help me so thank you!!

[@93ksj]

Extremely helpful man, thank you so much!

[@jesseperez6139]

Thanks man. Don't let the negative comments knock u down. Those people only do that to feel better about themselves. That's why they say what they say in a rudly manner.

[@oldirtybrewton]

THANK YOU!!!!! Your video was extremely helpful! Much appreciated!!!!

[@natesauvola6482]

Thanks. Great job. I believe you saved me a trip to the mechanic 🙂

[@cayrick]

This video is badly needed and I am surprised nobody posted it before. I am a half hour away from putting my weedeater in the trash and you may have saved its life. Thanks!

[@DIYOneForAll]

Awesome. Machine rescued from an early grave!

[@deronf7743]

Thanks buddy. Huge help for me.

[@victorbellan8357]

Thanks for sharing your knowledge!

[@TWTexasA1]

Your explanation was just what I needed 👏🏼👏🏼👏🏼

[@nicolaskutch2889]

Super helpful, thank you! Still need to go buy parts and try it out, but this will definitely help!

[@heroknaderi]

You’re a lifesaver thanks 😊

[@hectorguerrero739]

Thanks, very helpful video.

[@johnastrello]

I have been looking for this info. Greatly appreciated. Only one recommendation for other video's you might produce. Get to the information quicker. I'm actually having this issue with the precise machine you are working on. It too over 5 minutes to get to the answer. Give the answer, then the explanation. Not trying to 'whack' you, but offering comment as an observation/improvement.

[@robertpsarudakis3474]

This is great! I've done that to determine suction too. Always good idea to replace primer blub too as it's made of the same materials as line I'm sure.

[@chrisjohnson3590]

Excellent and simple to follow. Cheers for the video

[@bomrana1023]

Great help to repair my dusty weeds eater. Thanks

[@matthewsmith1026]

Thank you...this helped a lot!

[@jfernandez925]

thank you. i had my lines mix up. gave me problems with throttle. this fix it. appreciate it.

[@TheYendorian]

Omg I looked in my tank and the hose Wes in pieces this helped so much thank you

[@andyhugie1647]

very clear explanation thanks very helpful

[@AMReuben73]

Awesome….Thank you for this…very helpful 💕

[@morkarmorgan3161]

This was very very Good, Thanks

[@sal7396]

thankyou...youz a legend..helped me tremendously...now i know..

[@josephwalter662]

You sir… are the man!!! Thanks

[@ironhorse19]

Great video very informative and easy to follow many thanks for sharing

[@philc7665]

Thanks for posting.

[@googleuser8448]

Good video. 👍

[@cjstrick2010]

I was confused which was which as my filter fell off. Good troubleshooting tip

[@jeffybarra1246]

sorry u get negative comments. Your video was very helpful.

[@harryortiz1704]

Great video!!!!

[@sweetas7450]

Thanks for video it help me out a lot

[@marcusdavis8625]

Great video thank you so much

[@petedaly7500]

Very useful thank you!

[@ZellDTC]

It definitely helped me thanks brother

[@tombourne7184]

Dude Perfect reference you spent 3 minutes whining about the comment section before you even started explaining what we're here to see I would appreciate it I'm sure everybody else would if you can just share your knowledge and not worry about it it's on the Internet thanks brother

[@michaelsteakley3898]

fast forward

[@larrynelson7839]

@@michaelsteakley3898 If someone is nice enough to go to the trouble of recording a video, we should just say "thank you".

[@adrianhoward2171]

Brilliant thank you 🙏

[@inasuandrew2190]

Really helpful!!

[@larry3099]

Great instruction and very helpful video.

[@lew832]

Thank you. Good video and helpful.

[@Joe_JesusWins_Lewis]

Thanks, Perfect instruction

[@mitchsmith1268]

Thanks for the help

[@Krispy1011]

good video and good test for suction line - thx

[@joebloe1152]

Thank you very much.

[@premierfuncasino]

Great stuff just what I needed

[@GEO-GEORGE65]

great advice

[@rmwolfe6938]

Thank you man😊

[@robertgiller4246]

Very helpful. Thank you

[@SUPERCOUNT100]

I’m sorry……But, those 5 extra minutes paid Dividends. Thanks for the video. I have subscribed to your channel .

[@robertd1965]

Thanks man!

[@eddieconnor8864]

Great lesson, I removed the lines and forgot how they went back.

[@JetBob84]

THANK YOU!!! THANK YOU!!!

[@georgechristolini7869]

Got it thanks

[@brianfranco9815]

Thank you so much. Great video. Now I know

[@sanoumeah3746]

just helped me a lot

[@jimmytwinsburg4734]

Excellent video, well explained and demonstrated. My only comment would be theses engines are 2 cycle not 4 cycle.

[@borisbrain]

Thank you so much!😀

[@josht.m9697]

thank you for sharing that video , it was very good :) 😎

[@joshemajavich799]

Thank you sir

[@arthursmith3092]

99 percent the lines are two different sizes is another way to tell plus yr way you showed is for sure way to tell

[@charlesoverton]

I love it.

[@skynetlabs]

How to make a 1 minute video into a 6 minute video...

[@jc-pj3nh]

Thank you, you just solved a mystery.

[@siphilipe]

Not "I hope this video helps..." It certainly helped, helps, and will help. Thanks a lot!

[@kentcrosby3650]

Yes it helped me out

[@taftfreeman4476]

Much appreciated

[@servihomestead4324]

I do this all the time. Thanks for sharing. Have you ever come across the ridiculous 4-cycle trimmers with four, yes four, ports on the carburetor?

[@DIYOneForAll]

I have not come across or owned a 4-line setup. It would be interesting to play with one of those :)

[@servihomestead4324]

@@DIYOneForAll Haha, interesting is a good word for it. I worked on one recently and couldn't find much info about it online. Definitely want to take a picture before removing things.

[@DIYOneForAll]

@@servihomestead4324
I am a firm believer in taking pictures: I do it all the time, especially with taking carburetors apart :)

[@jackleporter4627]

Wow mate ya damn good bless ya mate👍

[@enjoyingretirement4846]

Thanks

[@RCWalletVacuum]

Excellent video and excellent channel content sir. You are going in the "subs"

[@amoore-zd9zv]

From about 3:02 until about 4:30 is the information you seek. Give the guy a break. Not everybody has the gift to teach. He still has the knowledge that you seek.

[@smackahoetribe1906]

Well said bro

[@healthyveggy]

Thank you so much. If the hoses are not connected properly, will that cause the engine to become flooded??

[@randimark7680]

Thank-you

[@joematus410]

Good one

[@tbrew8222]

Tired of hauling my stuff to grandparents, I started fixing up what they had burried in the shop. Most have a remote primer, and lines have crumbled beyond tracing the routing. SO, I used the same principal as here. With new line I just made a gravity feed and started port checking. I just wanted to gas and go and see where things are at rather than getting into the carb.

[@chrisv.6951]

Have the fuel line and return line swapped, will that cause the carb to flood?

[@fightschoolsageART]

Here in August 2023

[@21Kilokoliman]

Thanks so much, don’t mind the bad comments.

[@benrichard8405]

🤔🤔🤔🖒🖒🖒🖒🖒 thank you very much

[@carlbailey2448]

Nice video. But, I was advised that the feed/suction line to filter was the thin line and the thicker line was the return line. I have a 1995 32cc craftman. ?