I am trying to remove the powerhead from my 89 yamaha 70hp motor and am having trouble getting it to seperate from the base. I have removed the lower unit so its not stuck on that. I have removed the six bolts on the sides and 2 in the front. I have tried lifting it out with the engine hanger and smacking it a bit with a hammer and a block of wood, but I don't want to hit it too hard and break something else. Am I missing anything? Are there any tricks to get this to seperate? Thanks for any help.