Things I Know. -the oilier is producing pressure, as it is pushing oil out of the pressure relief plug. -the oilier (piston?) is clean and has all its parts. I took it out and cleaned it. -I do not believe that the oilier is badly adjusted. I tried a few different depth configurations of how far the retaining plug was in and maxed the adjustment in both directions on the screw. - the screen and rubber tubes in the oil reservoir are clean and clear of obstruction. -i have tried flushing the oil reservoir a few times, and also run it with avgas (100ll) it will pump about a teaspoon (5ml) of gas every minute or so. it will pump a tiny bit of oil but nowhere near what I need to operate the saw normally. Things I need to know. - Is there a way to fix this that doesn't involve taking the crank case apart? - If not how do I get the flywheel and drive sprocket clutch off? I have been thinking about making a custom puller but if anyone has done this before I'll take helpful hints. If i do have to take the crankcase apart, what should I watch out for, and is there anything else I should do while its apart? Am I missing something obvious here? If I get some more insight and still cant fix it i will take a video and see if we cant figure it out.