Motor sputters and dies when I give full throttle

[BoatHoopty]

I have a 150 pro series tracker 185hp evinrude outboard on my 1992 Nitro DC bass boat, I was on the water the other day and when I gave it full throttle the motor sputtered and died on me. The motor idles fine still but if I give it sudden acceleration it sputters and dies. The friend I went with suggested that the prop I was using was causing my motor to sputter and die. This boat is from a lower elevation, I currently live in the mountains and the lakes I live around average 7000-9000ft. I currently have a 14" three blade prop at 24 degree pitch. To test his theory when I gave it full throttle he tapped the trim up a couple times during the acceleration process, boat took off and planed right out. It ran fine, so now everytime I take off from a fishing spot as I throttle I tilt the trim up and I take off fine. Is this a prop/pitch problem Im dealing with or something completely different than what I think.
I did read further on the type of prop I should be using with this bass boat and found that a four bladed prop is better for my style of boat, but what pitch is best for me and my elevation?

 

[Monte1961]

Re: Motor sputters and dies when I give full throttle

I am thinking that you may have other issues than just yer prop! Just sayin!

 

[Daviet]

Re: Motor sputters and dies when I give full throttle

Have you done any checks on your engine, compression and spark? I would check those two things first, free and easy to do. It sounds like you might need to check the fuel delivery system, when was the last time the carbs were serviced?

 

[BoatHoopty]

Re: Motor sputters and dies when I give full throttle

From what I've read so far, it seems to be more of a carb prob, I will do the necessary checking tom. I will post what I find and Im sure another question or two.

 

[dlplost]

Re: Motor sputters and dies when I give full throttle

Idle mix too lean can cause that.