Welcome Guest - Sign Up today
Welcome Guest - Sign Up today
Store Links Mobile - Shop Now



Help Tip: If you have a question that has not been answered to your satisfaction in the archives, it is always best to start a new thread of your own. By starting your own thread, you will receive the maximum number of views by forum members.

Below are some additional forum policies in hopes of all iboats members will follow, Thank you.

1. Please do not reply to old topics or hijack existing topics. Old topics of a technical nature are like a library book, Please do not write in them.

2. Old topics should be considered archives and used for reference only. Please do not reply to them.

3. Do not take over someone elseís topic (aka hijack) with your own question, even if it is similar. If you have a question that has not been covered to your satisfaction in the archives, it is always best to start a new topic of your own.

4. If you have a question for the original poster (OP) and the topic is over 30 days old, send the OP a PM, he may not even visit the forums any longer, or may not notice your question in the old topic.

5. By starting your own topic, you will receive the maximum number of views by forum helpers that may not even notice your question when itís posted at the end of someone elseís topic. And those answers will be specific to your particular issue.

6. Please do not post to topics that have been inactive for more than 3 months unless you are the original poster. We have very active forums and any topic that remains inactive for that long should be considered "dead". It is especially confusing when there is an entirely new question posted to an old topic.

7. Posting at the end of any topic is considered to be hijacking the original posters topic which in turn subjects the topic to be closed if it continues to happen thus not making it fair to the original poster in the future had for some reason he/she needed to return for additional information or provide an update of the problem solved which is always welcomed within a reasonable amount of time frame.

8. Please note that you should see a red banner pop up near the bottom of each inactive topic asking you not to reply to old topics. The Red banner will read: Please note this topic has been inactive for 90 days. For the best results, please start a new topic.

Thank you all in advance for doing your part in helping iboats run a smooth ship.

Additional forum rules linked below.
See more
See less

Tohatsu 9.9 b2 motor flooding it's self

  • Filter
  • Time
  • Show
Clear All
new posts

  • Tohatsu 9.9 b2 motor flooding it's self

    Hey I own a tohatsu 9.9 B2 motor mabey 1970/80 I dunno it seams at full throttle it only run 2000/3000 RPM
    But when I pinch the fuel line so no fuel goes thru the line the motor picks up rpm and speed then starves of fuel
    It might be the carberator or the timing OR the ignition I dunno
    Also it's a 2 stroke

  • #2
    The M9.9B2 is from the 1980's. Quite obsolete, but covered in the Factory service manual. Carbs and associated parts are NLA new, but water pump kits are still available. If you want to get by, check everything over: fuel, electrical, and mechanical systems -- in that order, using the Factory service manual as a guide. Be aware that if you end up needing any carb bits, you are done.
    Buffalo NY USA


    • #3
      Sign up today
      How can you determine if OB is running 2-3K rpm without a induction tach ? test with a new fuel line, current one being that old with connector o'rings way worn out may be sucking air into fuel flow and OB missing...

      Happy Boating
      Sea Rider 320, 380 Sibs, 450 Rib, 2 Strokes Tohatsu 5,18 & 30 HP Proud Smokers