Logo
Click for Nissan Tohatsu Manuals, and Parts!
Results 1 to 7 of 7
  1. #1

    Default Tohatsu 9.8 four stroke sealed carb

    I'm not sure of the exact year of the motor as it came with the sailboat I bought a while back. When I started looking around on it I noticed the bottom cover on the carb was missing where the plunger sits. Then above that the hole where the plunger shaft is supposed to go through is sealed. Am I totally missing something here? Like is this some kind of modification. Do I just need to go and buy a whole new carb? the motor cranks and runs for a second if i spray a little starting fluid but then just dies. Thank you for any help

    i couldn't figure out how to post the pictures so here are the links to them

    https://imgur.com/mXA7zKW
    https://imgur.com/9wlJBTO
    https://imgur.com/Ws8VU61
    Last edited by Yesimbs; 11-13-2019 at 12:34 PM.

  2. #2
    Join Date
    Mar 2010
    Location
    Hamburg, NY, USA
    Posts
    2,858

    Default Re: Tohatsu 9.8 four stroke sealed carb

    Year is irrelevant for servicing Tohatsu/Nissan outboards.
    Model is critical. Exact model. Serial is good to have as well.
    The North American version of the 9.8 does not have any accelerator pump; it's not needed. The EU version is set leaner, so it needs a blast of gas when accelerating.
    So, your carburetor is normal; perfect as is.

    Click image for larger version. 

Name:	002-21051-0AF_FIG06.jpg 
Views:	23 
Size:	61.3 KB 
ID:	22266
    Paul
    Certified Tohatsu TLDI Technician
    Hamburg, NY USA

  3. #3

    Default Re: Tohatsu 9.8 four stroke sealed carb

    Oh man thank-you so much. I looked at that image for the longest time and never realised the smaller box said EU. Thank you for helping me out

  4. #4

    Default Re: Tohatsu 9.8 four stroke sealed carb

    So i took the carb off and apart and the inside was a mess. Both the nozzles where broken and there was hard calcium build up everywhere. I'm deciding to just get a whole new carb since they are only a couple hundred bucks but most of them i have found are the eu model with the accelerator pump. If i get one of those will it be a direct fit or do i need to find the same one I had before

  5. #5
    Join Date
    Mar 2010
    Location
    Hamburg, NY, USA
    Posts
    2,858

    Default Re: Tohatsu 9.8 four stroke sealed carb

    There are 2 different US versions. One for electric choke (as on Remote --EP-- motors) and the other for manual choke, F type. They are not interchangeable. The choke plate operates in reverse from one to the other.

    CARBURETOR, F9.8A2/A3 (F) $196.20

    CARBURETOR, F9.8A2/A3 (P) $230.93

    The EU version is not available in North America.
    Paul
    Certified Tohatsu TLDI Technician
    Hamburg, NY USA

  6. #6

    Default Re: Tohatsu 9.8 four stroke sealed carb

    Quote Originally Posted by pvanv View Post
    There are 2 different US versions. One for electric choke (as on Remote --EP-- motors) and the other for manual choke, F type. They are not interchangeable. The choke plate operates in reverse from one to the other.

    CARBURETOR, F9.8A2/A3 (F) $196.20

    CARBURETOR, F9.8A2/A3 (P) $230.93

    The EU version is not available in North America.
    Brand new carburetor and smack it on there and now she's running like a dream! Thank you so much for your help.

    The last thing I need to do now is buy the adapter pieces for the remote control cables. I've already removed tiller and purchased the rightsized cables that I needed to run to my existing controls so I'm hoping that I can just buy the linkage components from Tohatsu to connect the cables to the throttle and the clutch on the engine itself. Looking at the breakdown diagrams it seems like a pretty straightforward install

  7. #7
    Join Date
    Mar 2010
    Location
    Hamburg, NY, USA
    Posts
    2,858

    Default Re: Tohatsu 9.8 four stroke sealed carb

    As long as your RC box uses standard Morse cables, you can get throttle and shift. If you bought the P version of the carb, you can also get the electric choke.
    Assuming you stayed with the F type carb, and depenting on serial number, get the bits for the SRC kit:

    3V2838802M R.C. FITTING ASSY F8A2/9.8A2 031096XD~ $146.47

    If you have power tilt, you will need an additional cord to accommodate that.
    Paul
    Certified Tohatsu TLDI Technician
    Hamburg, NY USA

Similar Threads

  1. Sealed off Exhaust Ports 1979 Evinrude 235
    By madmick in forum Johnson Evinrude Outboard Forum
    Replies: 9
    Last Post: 09-06-2015, 06:54 PM
  2. PDS Sealed Bearing
    By jsrocky203 in forum Volvo Penta Gas Engine Forum
    Replies: 1
    Last Post: 06-21-2013, 07:20 AM
  3. Sealed fuel systems and vacuum...
    By Eric.C in forum Crusader Marine Engine Forum
    Replies: 13
    Last Post: 11-05-2010, 08:59 AM
  4. Converting to sealed cooling system
    By gkm24 in forum Mercruiser Sterndrive Forum
    Replies: 6
    Last Post: 01-17-2010, 05:47 PM
  5. 18hp 4 stroke Tohatsu Carb
    By wam in forum Nissan Tohatsu Outboard Forum
    Replies: 9
    Last Post: 07-02-2009, 06:33 AM

Posting Permissions

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