Well a LOT is going to depend on what shape it was in when you stored it, if you ran all the gas out of the Carb.
that will be Good, if it had a full tank of gas & it set there for 6 years, your Carb. will most likely have to be taken down
and cleaned, You might try putting a can of seafoam into the gas tank with a qt of gas, that may clean it up, Jusy Maybe,
Other than the fuel problem u may have, You need to change the oil, and u should be in good shape
Rat