Anyone know how to increase output on a clone 288 oiler?I love how the saw runs and cuts, yet uses appeox 1/4 tank of oil set on max to every fill of fuel. Anyone experimented with increasing output on these?I was sold one of the improved versions I was told, but I don't see a difference in output.Bar is a Tsumura 20,afraid to go longer for now.oil pump intake does not leak.