husqvarna 266 flooding

[krazeykev]

hi.i got a husqvarna 266 to look at for someone the other week..problem with it is it will start..run but not well then stop..wont start but when you take out the plug and turn it upside down fuel runs out the cylinder..put the plug back in and it does the same again...ive replaced the piston as the other one had light marks..[barrel is fine]..and rebuilt the carb ..but its still the same...any suggestions welcome

[Pine Ridge]

Tank vent ?

[Michael]

When you rebuilt the carb, you put the metering gasket in the wrong position.

[krazeykev]

Tank vent ?

tank vent has been blown through and is clear

[krazeykev]

When you rebuilt the carb, you put the metering gasket in the wrong position.

is installed correct..i double checked it...im thinking it could be the carb body where the inlet needle seats so next step is a complete new carb 

[Canuck123]

Definitely sounds like the inlet needle valve is the problem . Check the needle and seat for wear or debris . 

[Michael]

Drain the old fuel and put in fresh

[Al_Smith]

Some carb rebuild kits have little stub of a thing on the diaphragm metal disc  that presses the fuel shut off fulcrum and some do not .If the wrong one is used it could keep the lever depressed and the fuel just leaks through which will flood them .
Easy enough to test just by blowing air through the fuel inlet tubing .If it goes through the needle valve is either still depressed or for some other reason is held open slightly .
Most carb the lever /fulcrum can be adjusted if it's made of metal .Some like the Bing model 48 for example uses a plastic lever which has no adjustment to it .
I might add some carb kits provide several spacer gaskets in different thicknesses to compensate the adjustment .

[Air Lad]

Tilotson carb on 272 taught me that one
100% right Al
The diaphram on this one had a nib that slid into the metering arm
If you dont do this the diaphram is pushed down too far and causes a flood

[Al_Smith]

Here's another thing .People with all good intents mention "cleaning the carb" .Which might sound good but if it has any time on it more times than not the diaphragm has became stiffened and looses it's resilience .Stays puckered in one direction and either doesn't allow the fuel in or shut it off .
A basic rebuild kit doesn't cost that much .Depends on if you want to pay marked up dealer prices or generic which usually work just as well at 1/3 the price .Not my call .Just rebuild the darned thing and be done with it once and for all .Every carb builder in the world have web sites with the step by step directions ,Google is your friend .