Has anyone had issues with the chain oiler on their Echo saw? I've got a CS 590, its been running great overall, but the bar and chain are coming up a little too dry during cuts. I've already cleaned out the bar groove and oil port, swapped to a fresh chain, and even checked the oil tank vent, but still feels like it's not feeding properly, or maybe its just me, some of the Echo models have adjustable oilers, but this one doesn't seem to push much even when I warm it up, need tips please