1990 Johnson 175 hp starting rough

[jamesbalog]

I have a 175 horse johnson on the back of my v20 and she starts rough every time. Once she's running it will run like a champ. I plan on trying to change the plugs but other than that is there anything else I should look for?

I'm not the most mechanically inclined person but I don't want to take it to the shop for a tune up if I don't have to so any help would be appreciatrd