Logo
Click for Nissan Tohatsu Manuals, and Parts!
Results 1 to 11 of 11
  1. #1

    Default "I have a 9.8 fourstroke and t

    "I have a 9.8 fourstroke and the oil light stays on even though it is full and the filter has been changed, the motor also will barely idle and I can only get a few hundred rpms, I think the oil warning system is cutting out one cylinder but not sure, any ideas?"

  2. #2
    Join Date
    Jun 2007
    Location
    TAMPA, FL, USA
    Posts
    1,425

    Default How old is the engine?

    How old is the engine?
    Elvin
    Solution One Maritime

  3. #3

    Default The motor is a 2000

    The motor is a 2000

  4. #4
    Join Date
    Jun 2007
    Location
    TAMPA, FL, USA
    Posts
    1,425

    Default The 9.8 four-stroke was not re

    The 9.8 four-stroke was not released until 2004. Could you have a 9.9?
    Elvin
    Solution One Maritime

  5. #5
    Lous Outboard Service's Avatar
    Lous Outboard Service Guest

    Default maybe oil sending unit on the

    maybe oil sending unit on the side of motor has a single wire going to it had just replaced one on a 9.8 if the light does not go out motor will go into a safe mode causing ignition to drop. also if it is a 9.9 I have had in cold weather that you had to shut motor off and re fire because of oil being to thick to get to the oil sending unit before going into safe mode.

  6. #6

    Default is there any way of testing th

    is there any way of testing the sending unit? I have tried unpluging the wire from the sending unit and the light still stays on.

  7. #7
    Join Date
    Jun 2007
    Location
    TAMPA, FL, USA
    Posts
    1,425

    Default Do you have a 9.8 or a 9.9?

    Do you have a 9.8 or a 9.9?
    Elvin
    Solution One Maritime

  8. #8

    Default Its a 9.9 sorry.

    Its a 9.9 sorry.

  9. #9
    Join Date
    Jun 2007
    Location
    TAMPA, FL, USA
    Posts
    1,425

    Default "It sounds like it's a CD

    "It sounds like it's a CD module problem...Or you really have an oil pressure problem. So, Sservice manual for the CD test procedure or run it by a dealer and let them determine the problem."
    Elvin
    Solution One Maritime

  10. #10

    Default "I replaced the cd module and

    "I replaced the cd module and the oil pressure switch but still same problem, if I pull the dipstick while the motor is running it seems to have a lot of blowby, also the lower spark plug is very light colored the insulator is white but if I remove either plug wire the motor will not run, any ideas I'm running out."

  11. #11
    Join Date
    Jun 2007
    Location
    TAMPA, FL, USA
    Posts
    1,425

    Default Take it into a dealer and let

    Take it into a dealer and let them determine the problem. Your throwing money away by just replacing parts.
    Elvin
    Solution One Maritime

Similar Threads

  1. Tohatsu 98 fourstroke
    By hambo in forum Nissan Tohatsu Outboard Forum
    Replies: 6
    Last Post: 11-06-2009, 02:14 PM
  2. Mercury 25 hp Fourstroke
    By awol7892 in forum Test posting of messages, photos and formatting
    Replies: 1
    Last Post: 05-20-2009, 05:38 PM
  3. Problem Yamaha 99 Fourstroke
    By Gerben in forum Yamaha Outboard Archive
    Replies: 2
    Last Post: 05-04-2008, 03:25 PM
  4. 2003 mercury 15 fourstroke
    By c_r_exley in forum Mercury Mariner Outboard Archive
    Replies: 0
    Last Post: 05-13-2006, 05:34 PM
  5. Yamaha 40 fourstroke
    By Erling A. Johansen in forum Yamaha Outboard Archive
    Replies: 1
    Last Post: 01-16-2006, 01:13 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •