I've put at least 15 tanks of fuel through my MS290 now since I bought it 1.5 years ago. I love the saw. The first time I used it I needed to max out the bar oil adjustment screw to provide max oil to the bar. This is typical and resulted in about 2 fuel tanks per bar oil tank winter or summer. I always use poulan brand bar oil from wallys. I also top up both tanks when the fuel runs out so that I never run out of bar oil.
This last cord I cut took a couple of tanks of fuel and I noticed that the bar oil was almost empty at the same time the fuel tank was empty. I refilled both and kept sawing. Checked consumption again and the tanks were both at 50%. I adjusted the oiler to just under 75% and the rest of the day was back to the normal 2 fuel tanks per oil tank.
Is this a sign of impending doom? Do oilers fail this way? I have heard that the oil pump is often the weak part of the 290s but I figured it would stop pumping oil out.
This last cord I cut took a couple of tanks of fuel and I noticed that the bar oil was almost empty at the same time the fuel tank was empty. I refilled both and kept sawing. Checked consumption again and the tanks were both at 50%. I adjusted the oiler to just under 75% and the rest of the day was back to the normal 2 fuel tanks per oil tank.
Is this a sign of impending doom? Do oilers fail this way? I have heard that the oil pump is often the weak part of the 290s but I figured it would stop pumping oil out.