Flooding issue

[johncissel 0]

Hey guys. New to the forum here. Quick background, I'm a diesel technician by trade. Grew up on wheel horse tractors and just aquired my first one. Its a 91 314-8. Ran good all last season until the end when it ran rough and i parked it. Found the carv was shot so i put a new one on. The new one had dirt introduced to it by accident from the fuel line so i had to clean it out. Got the thing running great and then it died out as if the gas was turned off. Troubleshooting lead to replacing the fuel pump. Filter, rank, and lines are all good. Carv is adjusted to spec. The darn thing still wont run right and is flooding out. I have good spark too and air filter is new. Any ideas?

[Achto 29,405]

I would start by removing the carburetor and cleaning it completely. It is possible that your float needle may be sticking, causing the flooding. If you suspect the lines or filter, replace them.

[ebinmaine 72,719]

8 minutes ago, Achto said:

suspect the lines

 to 

 

As Dan said.... Carb seems first suspect.

If the lines are black rubber, more than 4 or 5 years old, or both... Replace them.

Ethanol gas badly deteriorates them.

 

 

[AMC RULES 37,196]

Check your float adjustment.

[johncissel 0]

Ive cleaned the carb twice. First time i did find some grit in the bowl. Second time was ok. Ill replace the lines as they are old. How would the float adjustment be changed? I have the fuel screws set at 2.5 turns out from seated which is what the manual calls for. Thanks for the replies! Also, is there a way to remove the main jet fpr cleaning? Or qhats the best way to ebsure theres no issue with it?

[ebinmaine 72,719]

Not sure about the main jet.

 

Someone else could help there.

 

Float adjustment on many small engine carbs is done by bending the little table/tang that hits the needle itself.

 

Please do remove ALL the fuel line from tank to engine. You'd be interested to see how much "stuff" is in there. The rubber will fall apart and pieces of that may be some of your problem.

I've been replacing all the small machine's line we have with see-through type. Blue or yellow (Tygon). Don't use clear vinyl more than temporarily because it stiffens quickly in gas.

 

Try to find and use ethanol free gas.

That'll help keep you from having issues in the future.

 

[AMC RULES 37,196]

[AMC RULES 37,196]

http://gardentractorpullingtips.com/carbfuel.htm

[oliver2-44 10,734]

As shown in the picture posted by AMC, make sure those two holes are open. Also pull the long needle  and make sure the tiny holes near the tip and further up it are open.  You may need to use a tiny wire from a torch tip cleaner to clean them.  You should be able to put the tip in you mouth (with it clean of course) and blow air from the tip holes to the upper holes.  If there plugged sometime I have to use a magnifier glass to find them.

 

If it was an aftermarket carb theirs a chance it's just junk.  I bought several chinese carbs that worked great, then put one on a 12 hp Kohler and never could get it to stop flooding. Bought another one from Isavetractors and it worked great. It seems there's no quality control on them and 1 in 10 is junk, but there cheap. 

 

Also if the problem with your original carb was the throttle shaft was worn, you can get some little 1/4" ID brass washers from your hardware store that has all those drawers full of odd things.  Put the in the recess boss on the top of the carb where the shaft comes out, they will tighten it up nicely and block the air flow.

Edited April 13, 2019 by oliver2-44

[Hacksawhero123 351]

Make sure the float isn’t cracked and filling with fuel. I had two pieces of Kohler equipment here both with bad floats at the same time. It happens. 

 

Mark

[Hacksawhero123 351]

Any luck?