2 stroke 8hp fuel questions

[fullquartpress]

2 tries to run from a fuel line with the 8hp's leg immersed in a barrel of water resulted in no known firing.
Next day after try 1, and with the choke knob in, and not on 'fast idle', and without water, it fired and ran for a second.
After try 2 with fuel line connected and with its leg in water, and no known firing, I removed the plugs, which looked OK, and pulled the starter several times, then reinstalled the plugs, torqued to 20 footxpounds.
Next day, tried to repeat the dry firing, but couldn't...until ~3 milliliters of fuel from a squeeze bottle through the 1/2 inch hole in front of the carburetor made it run for a couple of seconds, without the leg in water.
Is removing the carburetor the next step, or should I try reconnecting the fuel line, with the leg in water, and try the squirt of fuel through the butterfly again?
(I have a 'manual', bought online, indicating that the carburetor is a Walbro WM with single float, and with instructions for cleaning and rebuilding the Walbro WM, but no apparent 'troubleshooting' for the results I've had so far).
Thanks again for your advice.

 

[fullquartpress]

Re: 2 stroke 8hp fuel questions

With its leg underwater, the engine started with ~3 mls of fuel sprayed through the butterfly and, with fuel line connected, would run as long as I could keep pressing the blue plastic primer button on the carburetor's port side.
The 'fast idle' knob seemed to have no effect in increasing RPMs. which did increase when I put the engine into gear and increased throttle.
It would restart only if I sprayed more fuel through the butterfly, and it seemed to lose idling speed as soon as I stopped pressing the blue primer button.

 

[ondarvr]

Re: 2 stroke 8hp fuel questions

Clean the carb and check the fuel pump, also look for air leaks in the fuel line.

 

[fullquartpress]

Re: 2 stroke 8hp fuel questions

Clean the carb and check the fuel pump, also look for air leaks in the fuel line.

Thanks. Air leaks certainly were possible in my test, because the rubber hose was simply inserted into a 4 liter plastic fuel container.
The manual I have says to use pliers to remove the circlip(just looks like 20 mm diameter black plastic to me) from the choke, and then to pull the choke handle straight out...and then to unsnap the 'idle wire' from the primer bracket
What I can't see so far is how the 'slow fast start' speeds are changed by rotating the choke knob...when I rotate the knob, I can't see any
other hardware linkages moving. Is rotation of the choke knob rotating other part(s) and should it have changed RPM speed in my test? Thanks again.