small engine issue and the fix
#7730677
11/30/22 11:00 AM
11/30/22 11:00 AM
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Joined: Sep 2013
Posts: 18,561 Green County Wisconsin
GREENCOUNTYPETE
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OP
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Posts: 18,561
Green County Wisconsin
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Sunday I was splitting wood and my splitter ran fine then ran out of gas.
I filled it up and then I just could not keep it running for more than 4-5 minutes
no I am very picky about my fuel and this was fresh 91 ethanol free and since I rotate it often I just use my 2 stroke mix in my splitter if I haven't used it in a month I put it in the truck and get fresh.
this stuff was good and running fine in the chain saw only a week old
Monday I had drained the carb bowl to see if I had water or junk it , and really not much of anything hardly even any gas and it just barely trickled out a little bit then a few seconds then a little bit.
well that fits , I am not getting fuel into the bowl , if I wait 5 minutes I get enough to run for a few minutes then it dies just like when I turn on the fuel
last night I get to taking the air cleaner and assembly off so I can see the fuel line thinking well maybe they hid a filter in there and it is plugged , seeing no filter and good looking fuel line on a very short run over from the tank and still having the drain plug on the carb bowl out I was flipping the fuel shut of back and forth , when off I got no gas when on I got a little piddle then nothing then a little piddle. so I opened the gas cap and a steady piddle of gas now ran out
ah ha , my vented gas cap stopped being vented and when I put it on tight I vapor locked the gas tank and it had to burp air back up the fuel line to get any more down. put cap back on an back it off a half turn and finished my splitting
of course I started this at dark and then it started raining just as I got it apart so I finished in the rain almost back together it started pouring rain. just glad I found the issue and it is easily worked around open the gas cap a half turn.
I dislike this gas cap and tank design I have a nearly identical Kohler on my rototiller with a much better tank design even if it is plastic and this one is metal.
America only has one issue, we have a Responsibility crisis and everything else stems from it.
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Re: small engine issue and the fix
[Re: patfundine]
#7730709
11/30/22 11:34 AM
11/30/22 11:34 AM
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Joined: Jan 2007
Posts: 17,853 MN
160user
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trapper
Joined: Jan 2007
Posts: 17,853
MN
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Kohler. Just had the same problem on mine. We took the cap apart and tossed the filter. No more problems. Or you can buy a new cap for $40 $40 for a gas cap? I will just use the cap off a Yoo-Who bottle instead.
I have nothing clever to put here.
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Re: small engine issue and the fix
[Re: GREENCOUNTYPETE]
#7730714
11/30/22 11:37 AM
11/30/22 11:37 AM
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Joined: Jan 2008
Posts: 9,201 Alaska and Washington State
waggler
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Alaska and Washington State
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Does the gas get to the float bowl via gravity, or by some sort of pump (diaphragm, vacuum, mechanical, etc.)?
If there is any suction involved, check the fuel pickup line in the fuel tank.
I had an identical situation once with a chain saw, and have seen it develop in a snowmachine once. What happens is the fuel line in the tank deteriorates and gets soft, then when vacuum is applied the line collapses on itself either totally or partially cutting off the fuel supply. When you inspect the line it looks fine since it has sprung back to it's original form and will suck the gas up for a short period of time before the machine then dies.
This condition happens even easier if there is one of those little fuel filters on the end of the fuel pickup line; the filter causes a little resistance all it's own (especially if it is a little dirty) which causes the line to collapse even easier.
"My life is better than your vacation"
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Re: small engine issue and the fix
[Re: GREENCOUNTYPETE]
#7730715
11/30/22 11:38 AM
11/30/22 11:38 AM
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Joined: Jan 2007
Posts: 2,333 Hancock Co., Indiana
Kart29
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Joined: Jan 2007
Posts: 2,333
Hancock Co., Indiana
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I had the same problem with my riding lawn mower. I just drilled some small holes through the cap the vent air into the tank and have not had the problem since.
What from Christ that soul can sever, Bound by everlasting bands? None shall take thee From the Strength of Israel's hands.
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Re: small engine issue and the fix
[Re: patfundine]
#7730758
11/30/22 12:22 PM
11/30/22 12:22 PM
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Joined: Sep 2013
Posts: 18,561 Green County Wisconsin
GREENCOUNTYPETE
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Kohler. Just had the same problem on mine. We took the cap apart and tossed the filter. No more problems. Or you can buy a new cap for $40 good to know it is not just me for the others here is what the cap looks like like I said I dislike the design it could have been much simpler , easier , heck probably cheaper and worked better at being a gas cap and fuel tank it is a log splitter which means it gets used in the cold and snow a bunch but the tank collects snow and doesn't get it away from the opening well it also collects debris and again doesn't get it away from the fill hole you can see ice next to the hole that froze there since last night I covered it with a tarp when I was done using it but it was raining that hard last night. 40 dollars for a gas cap is also rediculous for 129 I could put a new Predator engine on it like useless gas cans I would guess this is a similar trying to meet epa BS those gas cans spill more gas than evaporated in the old ones
Last edited by GREENCOUNTYPETE; 11/30/22 12:23 PM.
America only has one issue, we have a Responsibility crisis and everything else stems from it.
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Re: small engine issue and the fix
[Re: waggler]
#7730766
11/30/22 12:26 PM
11/30/22 12:26 PM
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Joined: Sep 2013
Posts: 18,561 Green County Wisconsin
GREENCOUNTYPETE
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OP
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Posts: 18,561
Green County Wisconsin
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Does the gas get to the float bowl via gravity, or by some sort of pump (diaphragm, vacuum, mechanical, etc.)?
If there is any suction involved, check the fuel pickup line in the fuel tank.
I had an identical situation once with a chain saw, and have seen it develop in a snowmachine once. What happens is the fuel line in the tank deteriorates and gets soft, then when vacuum is applied the line collapses on itself either totally or partially cutting off the fuel supply. When you inspect the line it looks fine since it has sprung back to it's original form and will suck the gas up for a short period of time before the machine then dies.
This condition happens even easier if there is one of those little fuel filters on the end of the fuel pickup line; the filter causes a little resistance all it's own (especially if it is a little dirty) which causes the line to collapse even easier.
gravity only , the carb had the fuel shutoff built in to the side of it , just 1/4 inch hose from the bottom of the tank to the carb about 7-8 inches total with the bends and 2-3 inch drop
America only has one issue, we have a Responsibility crisis and everything else stems from it.
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Re: small engine issue and the fix
[Re: GREENCOUNTYPETE]
#7730785
11/30/22 12:44 PM
11/30/22 12:44 PM
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Joined: Dec 2006
Posts: 3,849 Pa
Wright Brothers
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Fixed two saws by taking vent apart and cleaning. Diagnosed by loosening cap and they ran. It's a dirty world.
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Re: small engine issue and the fix
[Re: waggler]
#7730789
11/30/22 12:48 PM
11/30/22 12:48 PM
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Joined: Sep 2013
Posts: 18,561 Green County Wisconsin
GREENCOUNTYPETE
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Green County Wisconsin
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Looks like gravity fed fuel system. I assume you've checked the fuel filter? yup no in line filter. there is a screen that drops in the fill hole that is the only filter I could find I assume because they realized the top of the tank design sucked and it would get junk in it easy. I can live with turn on fuel , choke on , open cap 1/4 to 1/2 turn wait a few seconds , pull it over and she pops as the start up procedure shut down procedure turn off fuel , close gas cap tight let it runout of gas
America only has one issue, we have a Responsibility crisis and everything else stems from it.
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Re: small engine issue and the fix
[Re: GREENCOUNTYPETE]
#7731701
12/01/22 01:21 PM
12/01/22 01:21 PM
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Joined: Sep 2013
Posts: 18,561 Green County Wisconsin
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not really any issue with anything breaking in 9 years other than fluids and filters the only things I have replaced is a lovejoy coupler , starter rope , and I broke the low pressure feed line to the pump seen on the left side of the picture , I hit frozen rut. when I trailer it farther than a few miles I put it on my utility trailer for highway speeds.
America only has one issue, we have a Responsibility crisis and everything else stems from it.
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Re: small engine issue and the fix
[Re: GREENCOUNTYPETE]
#7774626
01/17/23 12:34 PM
01/17/23 12:34 PM
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Joined: Sep 2013
Posts: 18,561 Green County Wisconsin
GREENCOUNTYPETE
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Green County Wisconsin
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more fuel issues on this Sunday.
I went out to split clear sunny morning about 20 good splitting weather it will start but not stay running.
pull the drain plug on carb and it isn't getting hardly any gas , loosen the cap , still the tiniest trickle stop trickle stop even with the cap all the way off.
ended up pulling the gas tank 1 Allen between the muffler and air filter and 2 10mm nuts on the other side pulled the gas line and still hardly a trickle
there is a plastic Jag that threads in the bottom of the tank 12mm and it has a screen , pulled that and gas runs out ok , put that back in and it runs out ok for a little then stops to almost nothing again , well I better drain the whole tank , did that and found I had a big ice ball in the tank
so the cap stops air but passes water , great
got that melted and tank cleaned out , the fuel line was weathered and cracked when I pulled it off the tank.
I got some 3/16 fuel line yesterday but it was raining all day and night , I have a tub over the engine to keep it dry and I think that is going to be an all the time thing as soon as the exhaust cools put a tub over it to keep weather off the engine and gas tank.
hopefully get it back together tonight
I have a load of maple to split , when it isn't a soupy mess in the yard probably Sunday again, it is looking like it will freeze up again the end of the week.
America only has one issue, we have a Responsibility crisis and everything else stems from it.
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Re: small engine issue and the fix
[Re: GREENCOUNTYPETE]
#7774652
01/17/23 01:18 PM
01/17/23 01:18 PM
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Joined: Dec 2008
Posts: 28,715 Eastern Shore of Maryland
HobbieTrapper
"Chippendale Trapper"
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"Chippendale Trapper"
Joined: Dec 2008
Posts: 28,715
Eastern Shore of Maryland
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Had a similar problem with mine. Did all that and still nothing, finally took a screwdriver and turned the jet screw back and forth a couple times. It fired right up. lol “Do the easiest thing first.”
-Goofy-
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