Please note this thread has been inactive for 90 days. For the best results, please start a new thread.
Results 1 to 2 of 2
  1. #1
    Cadet
    Join Date
    Jun 2006
    Location
    Virginia
    Posts
    3

    Default 1993 90HP Johnson

    I recently purchased a 1993 90HP Johnson outboard. The motor has very low hours on it and it has not been run in approximatley three years. Before taking it out for the first time I took it to my local repiar shop to have them look over it and do a general tune-up. The repair shop changed the spark plugs, changed the oil in the lower unit, pumped and drained the old gas, and they said that thy cleaned the carborator. When I took it out on the water for the first time the engine would idle rough and it smoked a lot. When driving it at about 3/4 throttle it would hestiate and jump like it was not getting enough fuel. Before taking it out the next day I poured a can of SeaFoam in the gas tank. That time it seemed to improve the hesitation some but it would not idle as well. The second time I took the boat out it would not go as fast as the frst time but it felt like it ran smoother. Do you think I am correct in assuming that the carborator probably needs additional cleaning to to cure the hesitation and improve the idling or could there be a bigger problem?Thanks for any help.

  2. #2
    Senior Tech Advisor tashasdaddy's Avatar
    Join Date
    Nov 2005
    Location
    Jacksonville, Florida
    Posts
    51,017

    Default Re: 1993 90HP Johnson

    #1 with it setting for 3 years they should have changed the impeller in the water pump. sounds like a incompetent mech i had once. i would question the shop as to there procedure of carb cleaning. get a $10 spark tester and check your spark and check your compression. use the search function for both test. if both are good then press the issue with the mech.
    FLORIDA GATORS
    TEBOW Country



    Please, NO PM's (Private Messages) regarding boat/engine problems. they will not be answered.
    That is what these forums are for. Post your questions, in the appropriate Forum.

Similar Threads

  1. 1993 Johnson 90hp V4
    By swfl 1st boat in forum Johnson & Evinrude Outboards
    Replies: 1
    Last Post: March 20th, 2010, 08:53 PM
  2. 90hp 1993 Johnson telltale issue
    By archcycle in forum Johnson & Evinrude Outboards
    Replies: 2
    Last Post: January 22nd, 2010, 10:02 PM
  3. 1993 or 94 90hp
    By PACERll in forum Johnson & Evinrude Outboards
    Replies: 1
    Last Post: October 17th, 2005, 03:51 AM
  4. Any known problems w/ 1993 Johnson 90HP?
    By Dhadley in forum Johnson & Evinrude Outboards
    Replies: 3
    Last Post: November 16th, 2004, 06:00 PM
  5. 1993 Johnson 90HP sneeze when cold
    By skeeterbuilt in forum Johnson & Evinrude Outboards
    Replies: 10
    Last Post: March 30th, 2002, 11:35 AM
  1. iboats Forum Directory - Over 100,000 forum posts organized by topic