I just recently purchased a 86 Cajun bass boat with a 90 Hp mercury 1986 model. I have been dealing with a prolonged starting period, even after the motor has been ran for multiple minutes Eventually it will start and run, but it just seems like to me that i should not take that long to start, a tune up has been done on the motor, and a new primer bulb has been put on, it will stay hard when you pump it up but after it is ran it wont be still anymore. If anyone has any ideas on what this could be please let me know so i can end this frustration.