OK, I am about to install my gas tank on my 75 after 2 years of resto work. ( It hasn't run in about 8 months though, just pulling it in and out of garage)What should I do to prepare it for the start? Someone said to pull the plugs and hand crank the motor to loosen it up and circulate the oil so it wont start up dry. After starting it and running it how long should I wait to change the oil? One last thing, The tank has been cleaned and lined inside and out but what about fuel residue in the carb. Would it have varnished?. should I wait to see how it runs or just rebuild it now while its still down?