Identifying Carb issue?

[CRUX]

Hi All,

My situation is as follows...

Engine starts first time-every time with full choke and 1/4 throttle when it's the first start of the day and the engine is cold. Runs perfectly.

If I run the engine, then restart within 1 hour of running, it will start first time- every time with NO CHOKE and 1/4 throttle.

Now here is the issue. If I run the motor, then try to restart 2-8 hours later, it will only start with NO CHOKE and throttle WIDE OPEN, and it takes anywhere from 2-8 cranks. It will take 10-15 seconds to catch and stabilize the Rpms. Then once again runs perfectly.

To me these symptoms seem like it is flooded, since it will only start with the throttle wide open, then take a few seconds to clear the gas and run smoothly.

There is gasoline pooling in throat of carb, so I replaced the replaced the float valve assembly, including the dowel trick. I have also made sure that the float is level as described in other posts. Additionally, I have made sure that the choke is functioning properly as well.

Any advice?

Thanks in advance!

[W2ET]

Running rich?

How do the plugs look?

Bill

[Al Schober]

Gas in the throat of the carb is not a good sign.
Did you happen to check the float when you had things apart. Perhaps one chamber is flooded? It's easy to check the float for pin holes by putting it in warm water and looking for bubbles.

[CRUX]

Plugs are slightly fouled, nothing out of the ordinary for the length of time that I run the engine. I have also leaned out the idle significantly, so not sure if it is running rich.

I did not check the float for leaks, I have a float from an old carb that I can check for leaks and replace the current one with that if you think that could be the issue.

[Dave Neptune]

Crux, as well as checking the floats for a hole be sure of the float setting. I would also check to see that the scavenge tube is clear to insure proper function. What height are you setting the floats at?

A properly calibrated carb should require the choke for most starting situations except for "immediate" restarts after stalling. In most starting situations the choke should be required or you are just plain ole to rich!

As far as the plugs inspect them for moisture too. A good looking plug should be a creamy beige color and dry.

Dave Neptune

[ndutton]

Apologies for even asking the question but which way are you turning the idle mixture adjustment screw to lean it out?