The motor I am trying to buy (70 HP Johnson seahorse not sure what year looks like late 70's early 80's)is not mounted to a boat. It is just in a shed. How would I start it without controls. Would a 12V battery and a gas can be enough. I know I would have to have muffs to put over the intake but would this be sufficient for checking the motor. I know I need to check compression. All I have to do for that is get a compression checker and take the plugs out and turn it over a few times in each hole and it should give me a reading right? I was told that it hasnt been run in about 6 months and the carbs looke like they needed to be cleaned. Could I spray some carc cleaner in there and try it or would that hurt the motor. I know these are very high performance machines and need to be taken well care of so i dont want to ruin when i try ir out. If you need more info on the motor i will try and get it to you. Any info you can give me on checking a motor would be useful.
