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I am having trouble getting my boat on plane. What type of carb cleaner can I use? Sometimes I have to walk to front of the boat to get on plane. It is under 17 foot long and runs great once on plane. What pitch propeller should I have on my 1978 Johnson 70 HP?
If this problem has always existed I think you may have a setup problem. Its really hard to tell whats going on by your description. Did you ever find out your prop size or WOT Rpm's?