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taxidermist
08-18-2011, 01:44 PM
I have a exmark metro with a Kaw fb460. I have cleaned the carb in my ultrasonic cleaner. I have replaced the needle. I hook up the fuel line and watch gas pour into the carb from the center venturie (sp?) I can flip over the carb and blow thru the fuel line and the needle seals fine. I have never seen this problem before and I am stumped. I can add more fuel line and loop it to slow the flow down but then it acts like it starves for fuel.

Rob

piston slapper
08-18-2011, 01:53 PM
The float might not be floating....Bad float?
Bowl vent might have an obstruction.
Fuel cap not venting?

You really need a pressure gauge...Not only do you look funny blowing into the carb,
You really dont get an accurate diagnosis.

taxidermist
08-18-2011, 02:03 PM
Dont worry I made sure no one was looking! LOL. Cap vent ok float floats good no holes. I still have to check vent. I will check that when i get home. It might be plugged as I have not seen any fuel come out of it while having this problem.

Rob

Restrorob
08-18-2011, 09:01 PM
Hold the carb up side down and check float adjustment, I actually raise "A" slightly higher than parallel to assure the level doesn't go too high.....


http://i107.photobucket.com/albums/m314/Restrorob/Kawasaki/FB/KawiFB460FloatAdjustment.jpg

taxidermist
08-18-2011, 09:29 PM
Thanks Rob,

Can I do this with the plastic float? Most of the time while working on the brass floats I do that. I just wasent sure on the plastic ones.

Rob



Hold the carb up side down and check float adjustment, I actually raise "A" slightly higher than parallel to assure the level doesn't go too high.....


http://i107.photobucket.com/albums/m314/Restrorob/Kawasaki/FB/KawiFB460FloatAdjustment.jpg

Restrorob
08-18-2011, 09:56 PM
Well..... You said FB460, That's out of the FB460 Manual....

Maybe someone changed the carb at some point ?


Regardless, I have adjusted plastic floats by warming the area shown on each side with a hair dryer, Then bend it with needle nosed pliers and blow on it to cool..... But....Make sure no one is look'n Bahaha !


http://i107.photobucket.com/albums/m314/Restrorob/Kohler/CV/KohlerPlasticFloatAdjustment.jpg

piston slapper
08-19-2011, 10:46 AM
Well..... You said FB460, That's out of the FB460 Manual....

Maybe someone changed the carb at some point ?


Regardless, I have adjusted plastic floats by warming the area shown on each side with a hair dryer, Then bend it with needle nosed pliers and blow on it to cool..... But....Make sure no one is look'n Bahaha !


http://i107.photobucket.com/albums/m314/Restrorob/Kohler/CV/KohlerPlasticFloatAdjustment.jpg

Heck with the patents....It may be time to write a book...
TRADE SECRET #.............Good Stuff......Its Not In The Book....

taxidermist
08-19-2011, 10:47 PM
Today I used some valve grinding compound and a q-tip and a drill and polished the seat. I then put it in water float side down and put a little air pressure with a bulb syringe and checked for bubbles. No bubbles so i installed the carb and it ran fine. I did find out they do not make this carb anymore so if your carb is bad your S.O.L.

Thanks for the help,
Rob

Restrorob
08-20-2011, 07:51 PM
Any time Rob, Glad you got it sorted out ! http://www.xtremesystems.org/forums/images/smilies/thumbsup.gif




Heck with the patents....It may be time to write a book...
TRADE SECRET #.............Good Stuff......Its Not In The Book....


Hey Slapper...... You may just be onto something here !!!!!

Hmmm...... "Restro's 101 ways to repair what's not in the book" ....... Whatcha think I could get per copy ??? payup