do you guys have a lawnmower that starts and runs perfectly for like one or two minutes
and then it dies you let sit for a little bit starts and runs again perfectly fine 1
2 minutes and then dies again that could be a symptom of your fuel tank not venting properly
I'm going to show you how easy it is to check this for yourselves to see if that actually
is your problem super fast you guys as a matter of fact I'm gonna put this in my fast
fix playlist I got a little quick link up here for you in the information button as well as at
the end of this video there's going to be some clickable thumbnails there for you to get back
to that kind of stuff too so stay tuned for that so fast again guys this is like a half a beer job
hey guys welcome back to Steve's Small Engine Saloon again thanks for coming back as usual
stevessmallenginesaloon.com that's my website got another little quick link up here for you
in the information button as well as at the end of this video check my website out when you get
a chance a lot of fun stuff to do on there so I got a Craftsman lawn mower right here with
a Honda engine on it I got a Husqvarna lawn mower right here with a Briggs and Stratton engine on it
you run it for one or two minutes and it dies it could be running out of fuel now you say it can't
be running out of fuel my fuel tank is right full to the top it can't possibly be running out of
fuel yes it can be and I'm going to show you why right now as best as I can with a couple little
props here first of all here's your carburetor so the carburetors got a bowl on the bottom of
it that holds some fuel in there that is enough fuel in there to make your lawnmower run for one
or two minutes before it runs out of fuel in that bowl and dies now here's your fuel tank this is how a
fuel tank works on a lawnmower you have a fuel level in there as you're using your lawnmower
the fuel level starts dropping if there's no air getting into the tank to displace the fuel that's
being used it creates a vacuum in that tank where it literally will just stop pouring fuel out of
that hose it'll just stop so 99.9 percent if not a hundred percent of lawn mowers out there have the
vent that allows the air to get in to displace that fuel the vent is in the fuel cap itself so
I'm going to demonstrate to you right now what I'm talking about on this Honda one right here
just because I can get my camera in there easier it's a more wide open I could use this Briggs one
but it's not going to be as clear so let's go on here I don't actually have a fuel cap
that's faulty right now with the vent in there I'm gonna simulate this though by just using my
hand so you guys can see what I'm talking about first of all you need a nice clean container we
all know the price of fuel nowadays we're gonna be pouring fuel out of the bottom of the tank
we want a nice clean container so we can just pour that fuel right back in your tank when we're done
little pair of pliers what we want to do is take this fuel line off from the bottom of your tank
wherever it's convenient for you right here on this lawnmower I'm using right here it's nice and
convenient just to take it right off of this fuel shutoff valve so we're gonna do that and the tank
is open right now I don't even have a fuel cap on there this is simulating a tank cap with the
vent that's working properly now watch this you just get a nice steady flow of fuel coming out of
the bottom there now I'm gonna simulate putting a tank cap on that has a plugged vent watch this the
fuel stops running out of there almost instantly if that happens to you right there or even if
it just slows down quite a bit where it's just trickling out and then you just got to crack the
the fuel cap back open not even necessarily take it off just as soon as you crack it back open
again if all sudden boom now starts coming out again you just diagnosed that right there
that you have a bad vent in your cap your fuel tank is not venting properly your lawnmower is
literally running out of fuel how do we fix that then we replace the cap simple as that I got a
link on the description of this video to take you back to this exact cap right here this Honda cap
they're not expensive they're like 13 bucks or something like that cheap easy way to fix your
lawnmower if you guys click on that link and go back and that's not the you want maybe you want
this cap when this Briggs & Stratton something like that you can still go back to my link and just
scroll down to the bottom of that page there's probably a hundred different caps on there you
can choose the right one that is suitable for whatever engine you have on your lawnmower now if
you have your cap screwed on nice and tight like that and you pull this off put that on nice and we
pull that back off again and it just keeps coming out like that never stops never slows down well at
least you just diagnosed that then that that's not your problem and you can move on to something else
that maybe is your problem maybe the carburetor needs cleaned or something like that I also again
I got some clickable thumbnails at the end of this video that you can click on like for cleaning the
carburetor and stuff like that so check those out at the end and I think that's it for today guys I
hope I helped you guys possibly I saved you guys some money give me that thumbs
up button like subscribe if you haven't share it with your friends throw some comments down
guys let me know what you thought of this video if it helped you or not and that's it Miller High Life Steve out.