I just purchased a 1977 Mercury 110 9.8 hp motor from the original owner with tank and line and manuel , motor is in great shape and does not look like it as tampered with. My question is? the motor was tuned up and used once and then put in storage for 3 years in the dry basement till I bought it, so far I cleaned tank and blew out the gas line, can I just add new fuel and start it.. thanks