I will sometime in the near future be trying to start up my dads motor on his boat . This is a 115 Johnson . This motor has not been started in 5 years but I know all the gas was run out of the carbs the last time it was run . Besides maybe clean the plugs and clean fresh gas , would any of you have any suggestions of anything else to do or replace before I try ?I am really hoping it will start but concerned the carbs may need to be rebuilt or maybe even replaced . Just wondering if there is anything else I should do first ? I plan to pump out what gas is in the tank and discard , before replacing with some fresh gas . Thanks for any help or suggestions .