I have thrown in the towel on this little POS.Yesterday I took the oil pump off again to make sure everything was in order & it was.I pulled the line out of the tank & thought I'd found the problem.Someone had put a fuel filter on in pl;ace of the oil pick up.I put an oil pick up on from a Homelite XL & the saw will still not pump oil manually.I've come to the conclusion that this is only good for parts - clutch,chain brake,muffler,recoil,brake lever,ignition coil/module.I can't even use the engine because the oil pump attaches to it.What a POS!