Scoutboy74
Moderator
This air noise that you're hearing...is this with the air filter element removed? It's natural to hear more noise with the air filter removed.
With the engine off and some eye protection on, position yourself where you can look straight down over the primary squirters. Work the throttle linkage. You should see an even discharge of fuel from each squirter. If you get an unimpressive dribble from either or both sides, that means your accelerator pump plunger is out of adjustment.
By revs high do you mean screaming, wide open throttle or more in the neighborhood of a fast idle? If just a fast idle, that could very well be a function of your choke setting. These engines are cold-blooded by nature and a fast idle at start up and for the first couple minutes of operation is often desirable for a good warm up.
With the engine off and some eye protection on, position yourself where you can look straight down over the primary squirters. Work the throttle linkage. You should see an even discharge of fuel from each squirter. If you get an unimpressive dribble from either or both sides, that means your accelerator pump plunger is out of adjustment.
By revs high do you mean screaming, wide open throttle or more in the neighborhood of a fast idle? If just a fast idle, that could very well be a function of your choke setting. These engines are cold-blooded by nature and a fast idle at start up and for the first couple minutes of operation is often desirable for a good warm up.