Engine Only Runs When Choke is on

Today we are Working on the Honda WT30 Dewatering pump. This is a 3 inch pump powered by a Honda GX160. The issue with this Honda GX160 is that it only runs with the Choke on. At first I thought it was a fuel related Problem. This video series is to go about troubleshooting to see what the issue is. Post your comments on what you think maybe the issue.
bad carb?
low compression ?
valve issue ?
this will be the same if you have a gx120,gx160,gx200, or any other honda clone engine.

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[ryanryan]

Great, thanks for not answering the problem!

[Partnerthedog]

If your engine simply won't run the quickest way to get somewhere is spray a flammable into the air intake like carb cleaner or starting fluid and if it still won't even fire for a second you have no spark. If It does fire then your having a fuel issue.. disconnect the fuel line from the carb and make sure its flowing out nicely. If not then most likely just need to clean the carb, its not difficult just take photos and remember exactly how everything came apart, note which side up or down on any little parts you remove.. stay organized and don't lose anything, Goodluck :)

[airborne]

had the same problem. replaced the carburetor gaskets and fixed my problem.

[elijahbarbee]

Thanks for the tip on checking whether or not the tank had airflow. It inspired me to check my clogged breather tube (predator, not honda) and my engine is running normally again.

[deankay]

Same for 2023 cars & trucks. The fuel filler cap lets air in! The amount they let out from pressure "Does" change. Stamped on cap or sticker, "Caution" May spray fuel was seen on 1960-70's cars. Carbon canister allow air to vent to atmosphere, but capture fuel. The pressure out was 1 PSI for decades then changed to 2 PSI so if tank pressure got to high. 10+ years ago, inputs from timer, air temp and time driven requires "Engine-Off, Natural Vacuum" helps the fuel tank pressure sensor sends info to the PCM 20 minutes after its shut off and eating dinner. This detects tiny leaks, not small or large.
Caps have to be tested and aftermarket caps with Keys to keep that expensive fuel from being siphoned, all fail. It take run time and temp before these test are run, so not the next day but still!
DK, ASE Master Tech since 78, retired

[boosterhuiz]

I've got the same problem!!! By the way, the choke lever has a nodule the same diameter as the fuel line so just pinch the hose and pull, then attach the choke lever to it. No leak ;)

[kentbarger]

it's going to run lean if the carburetor to intake manifold gasket is bad yes I also agree with the gas cap a lot of people don't know that the gas cap has vent holes and the gas cap very good video

[jamesburkett]

Save yourself time and energy when working on a motor with broken recoil use a high power drill or impact on the center bolt just be careful for a back fire also use a 6+ inch extension and make sure socket can’t easily come off and fall onto the crank

[thetunesfromporlock]

I had a problem with a GX160 only running on full choke, that's what brought me here. Problem solved: two words, wife diesel.

[Yosh]

Comes for answers * gets asked to what the answers are *

[garyrn]

where is pt 2? can not understand the sequence in any of these uboob vids.

[blondeblue]

Found my answer.  Watch the video.  When he unscrews the inner nozzle tube inside the carburetor, (where he takes a flat screwdriver and unscrews the post)  I had taken carb cleaner to the fitting, and it seemed cleaned - but it wasn't.   It was partially obstructed.  Just look through it onto the light and see if yours is plugged too.   Then I found that inside the nozzle tube was slightly plugged too.   I sprayed carburetor cleaner through the hole and found that it comes through the carburetor but could not see where the exit point was from.  I later surmised that it is coming between the two choke plates inside the carburetor.  (there's two plates plied together, not one.  There was no way I could clean between those plates with carb cleaner.  So I re-assembled the carburetor and found that I was on the right track.  It ran fairly rough in the "run" position, but ran.  Tomorrow I am going to get a chemical cleaner such as sea foam or something and try to chemically dissolve the rest of the deposits between those two plates as I use it for tomorrows work.  This is given that everything else that you can find is "good."  don't forget to take the float off and clean the needle valve, and spray all the fuel ports clean inside the carburetor.  Then  use fuel stabilizer in the gas from then on.

[pzpinkslip]

The screw from the float bowl actually fits in the fuel hose as a plug in the gx390.

[LawF]

Don't need a new carb. Just clean it and Hondas will run perfect again. I've fixed many Hondas.

[tigerromeevans]

solved my problem gas cap would not vent runs fine with cap off

[fatbuddycat]

The round part of the choke lever fits in the fuel hose as a plug!

[atomatom]

Reamed carb with a welding torch probe, drained carb bowl, added new plug, changed oil and air filter. It was a clogged carb jet. 10 min fix

[frankdavidson]

there is a screw on top of some carbs that tell how much gas is flowing if you have this type turn counter clockwise 1/4 turn will in grease fuel flow check this out before you start hunting and pecking the tbl.

[jeremibisher]

the problem with the carb is the idle jet which is plastic and it's located under the idle adjustment screw. Get a new jet with the orings the orings in an old carb almost always rip.

[mnite]

My same engine doing same thing. I cleaned carb and cap. What was the issue? I can't find part 2