2005 Yamaha 150HP V6

[polar05]

Took boat to dealership to have carbs cleaned. Problem was that it was dying on low idle. When getting the boat back it ran great. Notice that it was smoking alittle out of prop. It never smoked before it's a blue/gray smoke. Now when flushing motor at home smoke has increased. When we took it out in the water there is no over heating, no alarm sounding runs great. But it continues to smoke.

Does anyone have any idea what is causing this or what the problem could be?

 

[rodbolt]

Re: 2005 Yamaha 150HP V6

smoke is good.
supposed to smoke as its burning a fuel and oil mixture.
however if your concerned its possible the oil link arm was left off the lower carb arm and the oil pump is oiling at WOT position all the time. easy enough to check.

 

[polar05]

Re: 2005 Yamaha 150HP V6

Looked over motor and carbs, donot see any arm rod or parts that are not
connected. But then again it all looks the same to me. maybe need to remove air cleaner for a better look.



Thanks

 

[cousinabe]

Re: 2005 Yamaha 150HP V6

oil pump is on the port side of the motor.
make sure linkage rod #23 is connected at both ends and moves with throttle.

http://www.boats.net/parts/search/Yamaha/Outboard/2005/150TXRD/OIL PUMP/parts.html

 

[polar05]

Re: 2004 Yamaha 150HP V6

Re: 2004 Yamaha 150HP V6

Linkage rod 23 is connected at both ends. Moves with throttle fully at both ends. Is there other adjustments to lower the amount of oil mixture? How do you when it's getting to much or not enough mixture? Smokes the backyard up but it's not BBQ. Thanks for your diagram.

 

[cousinabe]

Re: 2005 Yamaha 150HP V6

based on your pic of oil/sludge coming out of the prop on previous post, I don't think your problem is related to oil linkage adjustment.
I would call the dealer who serviced your carbs and explain what you are seeing. maybe they added a treatment to your fuel, decarbed, etc, that could be causing your issue.

 

[polar05]

Re: 2005 Yamaha 150HP V6

10/4 will do thanks again. Will reply on this matter.

 

[robert graham]

Re: 2005 Yamaha 150HP V6

Maybe try switch to the Pennzoil 100% Synthetic Outboard Motor oil(Walmart $27/gallon), burns cleaner, less smoke. My motor is a premix and it smokes very little with this oil. Good Luck!