Walbro carbs come from the factory with a grey coating on the end of the inlet needle, to keep the needle from sticking in the hole...Sometimes the coating doesn't work, but once the needle is unstuck it won't happen again...[8D]
It can take 15 or more lbs pressure to unseat the needle even when it's not stuck..You can take the top off the carb and gently push the lever down to get the needle to open....Don't bend it.....