I keep finding funny things with this saw. The oiler puts out way too much oil and on the bottom of the case there is a hole with graphics around it indicating there is an adjustment for the oiler but there is no sign of a screw in the hole and it is located too far back to be aimed at the oiler. Is there supposed to be an adjustable oiler on this saw or does the saw just share engine cases with one that does? The oil pump is on the front side of the crank and it looks like the adjustment position is meant for a saw with the oil pump on the rear side of the crank.