B&S rebuild, new carb, won't start without starting fluid

[Scrubcadet10]

So does the choke plate ever close? If so, when?

Thanks everyone for the input so far.

on these engines the throttle plate should never fully close... if you can, post a picture of the carburetor and the linkage on your mower.

 

[Fish]

The engines came with a choke or a primer capability, but with an aftermarket carb, who could know? Post a link to the carb that you bought, the old one, and the air filter assy.

 

[Fish]

I should be able to see a gush of fuel pop up? Where would I see this? can I see it with the air filter on?

No, you take the air filter off and look into the throat of the carb and watch, you should see a pulse of fuel pop up into the throat.

 

[hcliffe]

on these engines the throttle plate should never fully close... if you can, post a picture of the carburetor and the linkage on your mower.

Here are pics., Let me know if you need better, closer etc. Thanks!

 

[Fish]

Here it is behind the white plastic baffle.

 

[Fish]

The plate that you are seeing is the throttle plate. Put up a pic of the backside of your air filter assembly and the gasket. You will notice the indentations in your old gasket, that is the path of the air pulse to the carb to prime it. If it doesn't seal well, then you won't prime the carb.

 

[Scrubcadet10]

All of your throttle linkage appears correct.
What i outlined in red is your throttle shaft and throttle plate (also called a butterfly valve, sometimes) it should sit a wide open (like it is) when the engine is not running, and close down to a little less than half way open when running.
What i outlined in green is your emulsion tube, which the main jet screws into, you should see fuel squirt out of it when you press the primer bulb.
what i circled in purple is the hole for the air impulse into the fuel bowl, which then push fuel out of the main jet.

Here is the back of your airbase/primer assembly.... when you push the bulb, air follows the path i outlined in blue, and comes out the hole i circled in blue, the hole corresponds with the the hole that i circled in purple on the carburetor.

 

[hcliffe]

Here are pics of the air filter housing.

 

[hcliffe]

All of your throttle linkage appears correct.
What i outlined in red is your throttle shaft and throttle plate (also called a butterfly valve, sometimes) it should sit a wide open (like it is) when the engine is not running, and close down to a little less than half way open when running.
What i outlined in green is your emulsion tube, which the main jet screws into, you should see fuel squirt out of it when you press the primer bulb.
what i circled in purple is the hole for the air impulse into the fuel bowl, which then push fuel out of the main jet.

Here is the back of your airbase/primer assembly.... when you push the bulb, air follows the path i outlined in blue, and comes out the hole i circled in blue, the hole corresponds with the the hole that i circled in purple on the carburetor.

Great diagram and explanations, thanks!

 

[Scrubcadet10]

Here are pics of the air filter housing.

take a picture of the back of it, where the gasket goes.