Josh,
I found an online manual.It's very vague but I do believe your right about the dirt. It certainly shouln't need an adjustment yet. They said to ..
1. Check the fuel cock mesh??? I located the fuel cock.It's a valve that allows me to run either an external or and in line gas tank. I'm running an inline . I took the valve cock apart and found the screen. There was some rust flakes in there . I flushed it out with carb cleaner and then blew it ftrough gently with my air compressor.
I figured the gas should not be getting past the screen to my carb... by the way that fine screen looks..it shouldn't

2, And check the fuel filter. / clogged line. I located the inline filter.I blew air through it..it was fine.

a. Also may need adjusted.
b. may need fuel pump cleaned

GOTTA ..GO!..the carb cleaner and gas are burning up my wrist...[X(]
When I took off the hose.....she shot out faster than I was thinking.