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  1. OpA28

    75 hp stinger fuel prob?

    When i slowly throttle up the motor doesnt get any power n starts 2 bog. The only way i can get it 2 move any faster than about 10mph is if i pump the prime ball. Pumpin the primer the boat easily reaches close 2 30. Not sure where 2 start, was told i need new fuel pump?
  2. OpA28

    Compression on my 78 75hp johnson?

    Around what psi should the compression b on my 75 hp stinger?
  3. OpA28

    Year of 75 hp johnson stinger?

    Was tryin 2 find out the year of my 75 hp stinger, model # 75ELR78C
  4. OpA28

    Height of cavitation plate?

    Was wonderin how deep the plate above the prop should be. As of now the motor is as high as it goes n its not makin any power. I realized this q when the prop would come up because of waves the boat would gain alot of speed then jst 2 drop back down again.
  5. OpA28

    75 hp stinger seahorse- cracked lower unit

    I have a 75 hp stinger (not sure the year). The lower unit has a 2" diameter hole where it meets the prop. Im sure its not a gd thing but i was wondering if it would efect the perfomance of the motor. As is i cant get my 18 ft boat any faster than about 10 mph!! I was told that its cavitating...
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