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  1. M

    Yamaha F250 Thermostats

    Pulled my thermostats on my 2009 Yamaha F250 and one looked terrible, all clogged with scale and whatever, and the other one looked good. The Port thermostat was all clogged and the starboard one was clean. Replaced them both with new ones. Wondering why one was bad and the other was good...
  2. M

    Yamaha after market outboard thermostats

    Has anyone tried any of the Yamaha after market thermostats? I have a F250 and the ones on EBay are $11 vs $34 ???
  3. M

    Location of Yamaha 250 Anodes

    I have a 2009 F250BTXR Yamaha and need to replace the engine anodes. I found the 2 on each of the cylinder heads where the spark plugs go and they were pretty bad. Engine has 350 hours on it and don't think they were ever replaced. Where are the remaining 7 anodes located? The drawings show...
  4. M

    Honda BF2AM water in oil

    I have a 1997 Honda BF2AM outboard that I picked up. It runs great buttttt is getting water in the oil. I see that it has an "oil flicker" instead of an oil pump, I assume similar to a 4-Stroke lawn motor. Looking at the diagrams it appears that the cylinder head has no water chambers in it...
  5. M

    Yamaha F250 Anodes

    I have a 2009 Yamaha F250 BTXR Outboard and want to check/replace the anodes on the upper motor. The motor has 350 hours on it and I don't know if the anodes were ever replaced or cleaned. Looks like quite a job to get to them, but I can handle it. My question is do I need to replace all of...
  6. M

    Yamaha F250 water pump procedure

    I have a 2009 Yamaha F250BTXR motor and I am going to replace the water pump impeller. Done this before on many other motors but I have a procedure question. Rather than leave the shift in Neutral for the procedure I was thinking that I should put it in Forward or Reverse before beginning. My...
  7. M

    Cabela's Prop C441323

    I have a SS Cabela's prop # C441323. It is a SS 4-Blade prop. 15 Splines, 13.5" in diameter. No other markings on it except the C441323. Does anyone know what outboards it would fit?? Thanks
  8. M

    Mercury 2005 8 HP 4-Stroke idles rough

    I have the subject motor and it starts right up but idles rough. Also, plugs look like it is running too rich. Seems to be OK on the stand at higher RPM'S. Took the carb off 3 times, disassembled it, and cleaned it along with pushing a fine wire through all orifices. Do I have the wrong Jet...
  9. M

    2003 Nissan 9.9 HP 4-Stroke missing at higher RPM's

    Picked up a Nissan 9.9 HP 4-Stroke. Carb is absolutely clean, new spark plugs. Took the carb apart and made sure all the small orifices are clean. Starts right up on first or second pull. Idles great. BUT misses badly at higher RPM. Changed out the coil with another one. Same issue...
  10. M

    Body filler for lower unit

    I have a Honda lower unit that has severe pitting on it. Wanted to know what is a good filler I could use to fill the pits that would last??? It's a 9.9 so I don't want to go the welding way.
  11. M

    HONDA 9.9 BF9.9D3 XHSA DRIVESHAFT SEAL REPLACEMENT

    I have the subject motor. The driveshaft seal(s) below the water impeller are leaking badly and need to be replaced. When I try to remove the large housing that the seals are in I can only get it up about 3/4 inches. I want to slide it up the driveshaft to remove it and easily get to the...
  12. M

    Mercury 15 HP 4-Stroke

    Put a new head gasket on my 2006 Merc to solve a water in oil problem. Solved the problem. Torqued down the head bolts to specs. Engine seems to run great now. Question is ...............do I have to retorque the head bolts after a certain hours of running or am I good to go????
  13. M

    15 HP Mercury 4-Stroke Static timing

    Got a 2006 15 HP Merc 4-Stroke that I removed the cylinder head and moved the flywheel. In order to set the timing I think that I need to set the flywheel on the TDC line and then turn the camshaft sprocket to number 1 pointing toward the flywheel, then install the timing belt. Is this...
  14. M

    15 HP Mercury 4-Stroke Cylinder Head Removal

    Got a 2006 Merc 15 HP 4-Stroke Outboard that I'm trying to save. There is water getting into the oil so I want to inspect the head gasket/cylinder head to see if that is the problem. Removed all the bolts that hold the head on but can't get it off because the oil pump is jammed against the...
  15. M

    Mercury 15 HP 4-Stroke water in oil

    I have a salvaged 2006 Mercury 15 HP 4-Stroke Outboard. It is a victim of Hurricane Ian. Was under water for 1-2 months?? Went through the usual save the motor stuff. Has 115 PSI compression on a warm engine. Good spark. Starts right up buttttttt water is getting into the oil. Drained and...
  16. M

    Nissan 4-Stroke 9.9 HP missing badly

    Picked up a 2003 Nissan 4-Stroke Outboard. Starts on first or 2nd pull. Idles fine, but when u give it throttle it misses badly. Pulled the spark plugs and they are all black and sooty. Too Much fuel??? Pulled the carb off 4 X and cleaned it and it is perfetly clean. Everything seemed fine...
  17. M

    Honda BF8A shift rod removal

    I have a Honda BF8A motor (1997 BACU) and want to remove the long shift rod (24311-881-D70 ) from the lower unit and change it to a short shaft lower unit. Have the lower unit off and removed the water pump casing. Tried to pull out the long shift rod but it does not want to come out. Lower...
  18. M

    Nissan 5 HP 4-Stroke with low compression

    Picked up a 2002 Nissan 5 HP 4-Stroke (NSF5A2) and trying to resurrect it. It has good spark but low compression (25 PSI cold). I put some oil in the cylinder and the compression increased to 50 PSI - still way low. It will pop a few times after I inject the oil into the cylinder. Checked the...
  19. M

    Honda 9.9 only runs with choke on

    Trying to bring back to life a 1997 Honda 9.9. It is in good shape with little use. It starts right up but will only run if the choke is engaged. I took the carb off 3 x and it looks great. Just to be sure I cleaned it 2x. Same thing. Thought it might be the carb gaskets so I put some goo...
  20. M

    Tohatsu 9.9 HP change to 15 HP

    I have a 1998 Tohatsu model M9.9D (2-Stroke) motor and wonder if I can do something to change it to a 15 HP model? I looked at the parts for both motors and thus far everything I looked at was the same??? Thanks ..................
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