I have a 181 se husqvarna chainsaw been in my shed for 4 years not gettin used now am needin it.can anyone help. when am trying to pull cord to start it its realy tough to pull when i take spark plug out it pulls perfect can anyone help

The engine may be flooded severely. Take the spark plug out, shut the ignition off, turn the saw upside down, pull the throttle full on, and pull the starter a number of times until it quits expelling fuel. Check for a blue and snappy spark (gapped 0.020"). Make sure the fuel tank is filled with fresh fuel mix (50:1 ratio). Check the fuel filter, air cleaner, and muffler for plugging. Check the condition of all of the fuel lines for decay or other damage. The carburetor probably needs to be dis-assembled, cleaned inside and out, and check the condition of the lower diaphragm which should be flexible without holes or cracks. Hope this helps!

Hay andrewparkin first get the old gas out start with fresh.you mite have to run a tank throw it just to get the old gas out of the carb remember 40:1 mix