Small Engine Fuel Filters
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- Опубліковано 11 вер 2021
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Today we'll be discussing some various fuel filters that I have in my inventory. I'll go over how they work, the differences between them, and why you should use a paper filter on your equipment!
Fuel filters (like air filters) are essential for keeping debris out of your engines carburetor.
How well they filter this debris is determined by the Micron rating.
A Micron is a metric form of measurement, and is equal to 1 millionth of a meter. So the lower the Micron level, the smaller the debris the fuel filter will filter out.
All of these fuel filters were purchased from STENS Canada.
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Eliminator Performance videos are like going to small engine university. I always learn so much from this channel. Thank you.
Thanks for watching!
Between you and Donnyboy, I have fixed many small engine problems. Thank you for taking the time to do these videos.
Thanks Peter, and thanks for watching!
God Bless you brother for this video. My 4 wheeler has been down for a couple of weeks now. I watched your video this morning and went straight out and fixed it. I had put a new carb on it and thought to be safe ( I had rust in my tank previously) I'd install an in line fuel filter. Not knowing any better I put a paper filter on it. I would prime it and it would run for a few seconds and then shut down. I was at my wits end. After watching your video I went out and took the filter off of it and it purrs like a kitten. I am a happy camper now. Thanks you.
Maybe try to find a filter that flows a bit better, I know the ATV ones are a little higher end and flow better than these lawnmower ones, due to the need for more fuel at full throttle. Glad you got fixed up!
A very well presented, laid out, an in-depth video. Great job! This will be helpful to sooo many people.
The only thing I would like to add, is that many people/commercial users (including myself) run with two fuel filters. Using a cheaper ($6-ish) high micron (25-30) fuel filter first, and then run into a final, low micron (10) fuel filter second.
We do this on all of our 27 HP Kohler V-Twins with Fuel pumps. We change the cheaper, clear, 25-30 micron fuel filter about twice a year (Machines used year around, for mowing, and snow removal), and the metal housing 10 micron filter every two years.
And one more thing I would like to add. Is to warn people away from using a 'mesh strainer' fuel tank insert. The aftermarket industry has these available to insert a shut-off valve with mesh strainer into the rubber grommet of fuel tanks. Once installed, the strainer cannot be seen. Which will likely later develop restriction issues, and can be hard to diagnose, because it cannot be seen.
Especially liked the section when you cut up the filters for internal viewing and interesting on the debris on a poorly maintained mower and how clean Ms. Baileys was. Just proves that regular maintenance keeps equipment running like that rabbit commercial.
P.S. Anyone with such good hand writing has to be a good mechanic, cause it’s all related.
Thanks for watching!
You just taught me why my old Husqvarna rider with no fuel pump (gravity fed) would stop running when the tank got below half way. I had the wrong fuel filter on it. Wish I knew before I got rid of it. Thanks for the info.
This is by far the best in-line fuel filter information video. Thank you! 👍
Thanks for watching!
Thank you. Just what I needed. I really appreciate your informative research.
So well explained. Thank you for explaining the disc type of filters….and stating they were non directional. Regards
This is great! Been fighting a fuel starvation problem on an intek Briggs and straton 18.5 hp. Afraid the current fram filter is reducing flow to the carb. Already checked the backfire safety switch, lines, jets, etc. runs like a top for 15-45min. Tap the crap out of the inline filter and she keeps going.....just can't pin it down yet. Be well friend!
Great video!
These things are on motor scooters, too -- those can certainly be considered small engines. I'd assume the functioning of filters in scooters wouldn't be as critically important though, as they interact with dust and dirt a whole lot less than outdoor equipment.
Great video, great info. and good descriptions . thanks for taking the time .
Thanks for watching!
Thanks for posting such informative videos. My old Craftsman lawn tractor came with a paper fuel filter, similar to the 30 micron shown in the video, when I bought it used. Thanks for pointing out that can cause fuel starvation issues on gravity fed equipment. I had not considered that. I'll replace that first, with the 75 micron filter in your video, to see if that resolves an idle surging issue. If not, I'll drill out the low idle jet, as shown in your other video.
Yes the low idle or "pilot" jet usually 0.002" extra
Great video. The second time I’ve watched and I subscribed. Great channel.
Awesome information, makes sense. Thanks.
Awesome info for anybody to easily understand. Thanks for the video! Cheers!
Thanks for watching!
Thank You . Good info for gravity or fuel pump filters.
Thanks for watching
Very thorough information 👍
Comme d'habitude, très instructif! Merci
Thanks for watching!
Excellent video! Thanks for sharing!
Thanks for watching!
Excellent, as always.. Thanks! 👍👍
Thanks for watching!
Great info explained well !!
Thanks for watching!
excellent content. Thanks
Great information. Thanks
Thanks for watching!
Very informative video I've noticed the new filter is the wrong way round on a lawnmower I'm going to start on .
Cheers
Very good info, especially when you cut them open to see inside, it is better to change filter than change carburator, and much dollar to save
Thanks for watching!
Great video. Thanks!
Thanks for watching!
Nice work.
Thanks Bruce!
Great video!! Thanks!!
Thanks for watching!
Great video there and discussion
Thanks for watching!
Very nice video
Excellent
Thanks for watching!
Great information my friend.
Thanks for watching!
Pretty much spot on... except different manufactures measure the micron ratings differently. Some use single pass, some muti pass. Then there is normal ratings, some don't use that...
Ya know a guy that PRINTS that nice will sure do quality work on your mower
Interesting, thanks ! 👍😎
Thanks for watching!
Great topic, people need to know. 🐓👍
Thanks!
Good day Boy good videos. I would have thought jerry cans would be clean. I bought funnel from ctc that removes water, went & looked to seen screen filter, paper wore off. Thanks
Thanks for watching, try that Mr. Funnel!
Thank you for this...I picked up an Ariens 17.5 hp Briggs and Stratton riding mower and put a cartridge filter on it and its having trouble idling but runs at full throttle.. and it gravity fed..🤔 going to get a stock filter and see if that's the problem.. UPDATE: Installed OEM Briggs filter for gravity fed system ....Now it runs smooth...Thank you!
Yes they either a red or white Briggs filter!
Which would be best for a 4-Stroke 196cc motorized bike ? I'm building my first build
Great video. Thanks. Quick question; never took note of this. I run an exmark with a 20hp kawasaki. Its got a fuel pump. It runs fine, but the clear fuel filter only fills about 1/3 of the way as its running. Should it be full as it runs ??
That's usually how they work depending on how the fuel line is routed. Take a look at the 120-436 filter that I cut open and dumped the crap out of, you'll see the grey discoloration on the paper filter where the fuel was resting. Same area as yours, about 1/3 the way up. Thanks for watching!
@@EliminatorPerformance thanks for taking the time to respond.
any update or do you have an oil filter recommendation for 18 hp kawasaki
What is your opinion on the in-line Pyrex glass fuel filter?
I use it on my 283 engine
I heard different things some people love it because you could see the dirt that accumulates in the filter but others say it wiggles itself loose and is prone to causing engine fires when fuel leaks out of it on a hot exhaust manifold
Yea I don't like them, but it's just person opinion. The Plastic stens ones have never failed me, and I've used thousands. The China ones from Amazon that come in the package with the carbs, straight into the garbage can lol most of them are broken already before I even open the box.
Another awesome video, thanks. Have you used a
paper fuel filter on a gravity fed system? If so what paper fuel filter would you recommend?
Yes, those Tecumseh ones are great! I haven't had any issues. Like I showed, I used it on that generator and it worker perfectly!
@@EliminatorPerformance what size fuel tank do you need for it to work fine ? My mower tank is like 1.5G
Can A Fuel Filter Affect The Flow Of FUEL Into The Carb,What Fuel Compression
I have a DR Bush Hog (2007). I purchased some fuel filters (paper in clear plastic/AMAZON) and they don't have an arrow for FUEL FLOW DIRECTION. The original did not have an arrow either, but I didn't pay attention to how it was connected to the fuel line....from tank to carb. I'm thinking the cap-like top goes to the carb? Any suggestions? Thank you.
Bigger end with the largest area goes towards the tank, the filter should filter debris so you can see it (outside of the paper) if you run it backwards the debris gets trapped inside no good
Is it normal to have very little fuel in the filter while its running I have a John Deere Z335e zero turn?
for the stens 120-562
👍👍
Great video. So basically for a walk behind 21” mower my best choice is the white disk filter, since the paper filters won’t push the gas through?
Yes
No. It'll run just fine with the larger BETTER fuel filters you couldn't pay me to use one of the disk ones.
Gotta be careful, I've had fuel supply issues with them before. Cub Cadet CC30 prime example. Even the Technical manual says only use the red Briggs filter with the metal screen, as a paper filter won't flow enough and the engine starts surging from not enough fuel.
If I have a glass bowl filter on my John Deere 110 with a k181, do I need another filter, if so which one?
No you shouldn't, I really don't like the glass bowl filters.
Should the fuel filter be before or after the fuel pump?
If I add a shut off valve, where should it be in relation to the filter and the pump? Thanks!
Before, that way it keeps debris out of the pump!
I have a 1989 Toro 724 (38072) snowblower with a Tecumseh HSK70 engine. It has no fuel filter and I can't find anything in the manual or IPL about fuel filters. Can I use a fuel filter with this engine? I'd prefer to use the smaller clear paper filter pictured (Stens 120-560) although at that price I'd rather buy another manufacturer/supplier and more of them from somewhere else and get a better deal. I'd install it just downstream of the shutoff valve under the fuel tank and above the starter motor. Will this work simply by gravity feed or does this engine require a fuel pump for this to work? I'd like to see a video addressing the differences in various machines for filters with and without fuel pumps.
What is the difference in height between the bottom of the tank and the inlet of the carb?
You have cool handwriting bro 😂
Great video. What about the filters in the fuel tank on a trimmer or blower?how many microns are they?
Great question, STENS doesn't actually list the micron level of those filters, so I decided not to include them, as I didn't want to put out any incorrect information. If I find out, I'll let you know!
My question as well. What’s the micron rating and what’s the difference between the two types I see, the ones with bare filter material on the outside and those with a plastic cage around the filter. Also related, why do they tend to fall off the hose inside the tank?
Because the fuel line for those are garbage. They become brittle and hard, causing the filter to fall off. Idk if they make better fuel line, stihl's fuel line seems to be better but you can't buy a roll of it, that I know of.
Dan Oakley My research so far indicates Tygon fuel lines (always marked on the lines, as opposed to the crappy knockoffs who say they’re Tygon in the advertising but really aren’t) are the best available so that’s what I’ll be using for now. I just wish they made them in clear so it would be easier to see fuel running through them.
I have not been able to specifically find any micron ratings for the small two stroke filters but many are a compressed felt material and some are porous plastic and information on line says the felt filters run from 1 to 100 microns and the porous plastic 1 to 200 microns. If we find any specific information we will be glad to respond further.
how does size of the filter have anything to do with particulate size? Flow rate can be effected by media surface size, more media surface equals an increase of flow. So bigger is better. The large body has a secondary benefit of allowing particulate and water to drop out. Efficiency is also important to understand, not everything is as it seems due to quality issues. Also cellulose filter elements can easily be rendered useless when water is present. Dirt and water are the 2 biggest issues with small equipment. The discussion point of water was completely missed.
Great points, usually the larger the element, the finer the particulates it will filter. This is because the paper elements are bigger than say a metal screen. As shown, the filters get larger in size while the particles they filter get smaller in microns. Bigger is usually better, but the filter element has a direct connection to flow rates, as most of these engines have a fuel system that is gravity fed. It's not like a car, where you have a strong electric fuel pump, and can run a large element filter with the smallest micron rating. Gravity fed engines will become starved for fuel when running these larger paper elements. The engine will surge, and sometimes eventually just become vapour locked and won't have any fuel in the bowl to run.
I would like to know what's the length in inches ?
Since I've changed to a different fuel filter on my 50 cc scooter my scooter doesn't run correctly should I get the same one that came with it it seemed smaller than what I have now?
Yes I'd recommend factory parts, it may be decreasing the amount of fuel your engine is getting
@@EliminatorPerformance Thank you for ya reply I'll make sure I pick the right one up my ride hasn't been right since I've changed it thanks alot!!
@@EliminatorPerformance the factory was a 3/16 and I had got 1/4 fuel filter I c that those are different sizes so I'm going to go to either lowes or advance auto to get the original size which should be 3/16 I swear that has to be my problem 🤔
Can the red one go in line either way....or must it go one way
Yes, but we prefer to put the larger side towards the fuel tank, as it has more volume on that side.
For something like a 2000 watts small inverter generator what would you recommend? My old champion didn't bring a filter at all
Firman has some small ones, but I'd always recommend a honda or something with a Honda like a Coleman
@@EliminatorPerformance Oh I'm sorry I think I wasn't clear enough haha, I meant what filter you recommend, would a small inverter generator do alright with like a 25 microns filter?
@@DDX1944 that's my bad, I didn't catch the end of your comment. if it has a fuel pump run a paper filter, most generators don't, I'd recommend the white metal screen one. They work well enough to keep debris out of the carb
@@EliminatorPerformance Thank you!
@@DDX1944 Hello DDX, I stumbled across this video and was wondering the same. I have a Honda EU3000IS and it has a pencil filter attached to the fuel cut off assembly that enters the fuel tank from the bottom and it hurts my wallet when I see the Honda aftermarket price for that filter and o-ring = $30 bucks. Crazy. Did you try the white disc filter for an aftermarket fuel filter on your inverter generator? Was it a Honda EU2000? This video sure cleared it up for me since the Honda fuel filter is only a plastic mesh also. Thanks, Gerard
I prefer any filter that lets me see the dirt it collects
Absolutely, thanks for watching!
I run my mower about 400 hours a year should I change the filter every year or before
Every 200hrs is ideal Oscar, thanks for watching!
@EliminatorPerformance Thank You for your help.
Should fuel ideally be filtered before going into an engine tank? If yes, how would you suggest going about that?
Check out my video; ua-cam.com/video/p1aJoohWNms/v-deo.html
@@EliminatorPerformance Thanks!
a good fuel fiter and a turn off value will save your mower
does it matter which way to install the red filter?
No
My research found that fuel flow should be into the small bowl and out the larger end which is where the screen is located. I was of the impression that it didn't matter until I found a manufacturer website but can't remember the site. Consider all filters in the shape or form of a "V" so in on the small and out on the large end and you'll never get it wrong.
@@stevef.9659 Interesting and normally this is the way we install them . I believe if you check depth to the screen from the inlet and outlet sides there is more space to the screen on the small end side thus use it as the side closest to fuel tank.
So basically your saying the smaller the micron number the more it filters out?
Yes exactly, as I mention later in the video, a water filter is 0.2 micron, and filters bacteria. These fuel filters go down to 10 micron in this video.
@@EliminatorPerformance yes thx I commented before watching rest of video you are a huge help thank you so much we love ya
Stupid question maybe? Using a fuel filter on a two stroke engine, will the oil in the gas clog up the filter?
We actually have installed filters the screen type on LawnBoy 2 stroke mowers and you would not think the oil would clog the filter since grass trimmers, chainsaws, blowers etc have very fine internal fuel tank filters attached to the fuel intake and they do not clog.
No the oil is in solution
Do you have a video on oil filter for small engine tune up see you later young man 😎👍
No, but I've been planning on making a video sooner or later! I've been saving some to cut up. Thanks for watching!
@@EliminatorPerformance 👍👍
Good info, but your speaking one word at a time is distracting.
I have never heard someone speak more than one word at a time....
@@petesmith3923 Touche.