Boulevard C90 BOSS Boulevard C90BT Boulevard C90T Boulevard M109R Boulevard M109R B.O.S.S. Until I figure out the cooling system I ran up north over the weekend and grabbed the 2 horse Honda 4 Stroke.Boulevard C50 Boulevard C50se Boulevard C50T Boulevard C90 B.O.S.S. I wanted to use this motor on my Widgeon for the south zone opener. How much water should this motor pump? I realize this is not a 9.9, 15 or 25 it is only a 4 horse Single Cylinder 2 stroke. I am going to drop the lower unit again and check to see if the water pickup pipe is seated correctly in the water pump housing. However, there is a wet mist of exhaust coming from two small exhaust holes on the shaft. The bigger problem is that I am expecting a strong stream of water coming coolant hose. The motor runs better now that the carb cleaner has been run through and sat for awhile. I got everything back together and started it up. (Kind of went with replacing the stud bolt) I had no choice but to disassemble the pump housing to replace the stud bolt and changed the gaskets while I was at it. While doing so, one of the stud bolts that holds the pump housing to the lower unit snapped. I located a new impeller and put things back together. The impeller definately was old and required replacement. I popped open the lower unit and opened up the water pump housing. He was correct the water pump was not pumping hardly it any water.
![suzuki dt4 suzuki dt4](http://www.koscom-trade.com/files/boat_engine/suzuki_dt4/20151026_153529.jpg)
The motor definately runs but, really could use a new spark plug and a good carb cleaning or Jet Replacement.
![suzuki dt4 suzuki dt4](https://cdn.nettivene.com/live/2020/09/19/c9e0b7853153bdac-large.jpg)
I added fresh fuel/oil with some carb cleaner and started it up in a bucket of water. I brought it home and drained the fuel tank (internal) because the fuel smelled worse than Turpentine. After sitting so long I knew the Impeller needed replacement. However, he did mention that it was not pumping water. It has been stored in his garage for the last 8 years and was in running condition that last time he used it.
![suzuki dt4 suzuki dt4](https://cdn.nettivene.com/live/760456/Moottori-Suzuki-9cced9bcea0f3b89-large.jpg)
My wife's uncle gave me a 1989 Suzuki 4 HP 2 stroke outboard a few months ago. Maybe someone can enlighten me on something I may have missed.