Hi-
I am posting this here rather than in the Merc forum because I know the OB in question is really a Tohatsu powerhead. It's a 2006 Mercury 9.9 4 stroke. It's been stored most of the last 3 years and I recently pulled it out of storage because we plan on selling it. The engine was "run dry" and fogged before storage.
The good news is that it started right up. Seems to idle fine. However, if I rev the engine up even a little bit, after 10 or 15 seconds it will suddenly die. If I then try to restart, a normal restart doesn't work. What does work is to open the throttle all the way (flooded start procedure). It will then start and idle. However, as soon as try to rev up it again dies. There is visual evidence of gas in the exhaust when this happens.
I'm trying to get a handle on what the likely problem is, and what it might cost to fix. From the symptoms, I guessing some type of carb or fuel pump issue, for example a carb float that is stuck, causing it to run way to rich on the main jet.
Anyway, I'd welcome input from Tohatsu Guru or anyone else on the forum.
Thanks
-dm
I am posting this here rather than in the Merc forum because I know the OB in question is really a Tohatsu powerhead. It's a 2006 Mercury 9.9 4 stroke. It's been stored most of the last 3 years and I recently pulled it out of storage because we plan on selling it. The engine was "run dry" and fogged before storage.
The good news is that it started right up. Seems to idle fine. However, if I rev the engine up even a little bit, after 10 or 15 seconds it will suddenly die. If I then try to restart, a normal restart doesn't work. What does work is to open the throttle all the way (flooded start procedure). It will then start and idle. However, as soon as try to rev up it again dies. There is visual evidence of gas in the exhaust when this happens.
I'm trying to get a handle on what the likely problem is, and what it might cost to fix. From the symptoms, I guessing some type of carb or fuel pump issue, for example a carb float that is stuck, causing it to run way to rich on the main jet.
Anyway, I'd welcome input from Tohatsu Guru or anyone else on the forum.
Thanks
-dm