ok guys thanks heaps thats exactly what it was low oil i put about half a liter in there until it came up on the dipstick and she runs fine a bit ruffer than before but ok...and a bit stiffer on the pull cord so like grump said i may have seized the big end bearing but hopefully after a few runs it might un sieze and loosen up ....maybe I just cant belive only half a liter of missing oil will do that!!!
