Small Engine Problems? Ask an Engine Mechanic for Answers ASAP
Hello,first of all,are you using bar and chain oil or motor oil? Next make sure the bar groove is clear of dirt anf the holes at the mount end of the bar are clear,1 hole is for the chain adjuster and the top hole aloows oil into the bar groove.If all of those are ok the oil pump itself could be the problem.
http://www.partstree.com/parts/?lc=poulan_weed_eater&mn=1950+Gas+Saw+Type+4&dn=21_15_0003 #13 is the oil pump assy and it can also be ordered from sears parts direct.