I can't believe I forgot to add this to the video as well ..all of these echo pro series saws have cross drilled crank shafts at the clutch side , which means no need to take sprockets and drums etc off to grease the needle bearing all you do is use a sprocket grease gun on the end of the clutch side crankshaft and give it a few pumps ........as I said I have had various stihls 028 , 038 , ms 181 , Ms 240 , ms 660 and even the 500i and none of them had that feature😊