2 stroke vs. 4 stroke for a 9.9 yamaha

[mr.vrooman]

Im in the market for a new 9.9 yamaha outboard. I have looked at both the 2 and 4 stroke. I will be using this motor on a 16' aluminum fishing boat and I will be portaging this motor.

I have checked the weights, and the 2 stroke is lighter by 11 pounds which would be nice. but I would like to hear some opinions from some more "seasoned" boaters.

Thanks!

 

[gman98106]

Re: 2 stroke vs. 4 stroke for a 9.9 yamaha

Initial cost may be cheaper for the 2, but I recommend you by the 4 since you would only buy a small amount. The smoke isn't as bad as the old 2 stroke, but thier still would be some with a new 2 stroke.

 

[Silvertip]

Re: 2 stroke vs. 4 stroke for a 9.9 yamaha

When it comes to portaging, that means weight and 11 pounds is not insignificant. Four strokes also need to be transported vertically or one one specific side and that side only to prevent engine oil from getting into places it doesn't belong. You need to weigh your intended use carefully.

 

[ralphl]

Re: 2 stroke vs. 4 stroke for a 9.9 yamaha

sorry to poke into your thread but which model 9.9 yam is the two stroke?? didnt realize any two strokes were still available Thanks

 

[steelespike]

Re: 2 stroke vs. 4 stroke for a 9.9 yamaha

Get the 2 stroke,lighter and has more low end grunt.
Fewer less complicated service intervals.

 

[Silvertip]

Re: 2 stroke vs. 4 stroke for a 9.9 yamaha

Two strokes are very much available. Carbureted two strokes are becoming fewer but the Evinrude E-tec and Mercury Optimax are both two strokes but are DFI (direct fuel injection) rather than carbureted.

 

[pecheux]

Re: 2 stroke vs. 4 stroke for a 9.9 yamaha

I would love to own a new Yamaha 2 strokes as a kicker .... still a simple 2 strokes OB.

 

[jbjennings]

Re: 2 stroke vs. 4 stroke for a 9.9 yamaha

Im in the market for a new 9.9 yamaha outboard. I have looked at both the 2 and 4 stroke. I will be using this motor on a 16' aluminum fishing boat and I will be portaging this motor.

I have checked the weights, and the 2 stroke is lighter by 11 pounds which would be nice. but I would like to hear some opinions from some more "seasoned" boaters.

Thanks!

I think if you TESTED both out, you'd want the 2-stroke for sure. I'd also be really, really suprised if the 4-stroke was only 11 pounds heavier.
As silvertip said, the 4-stroke would be a total pain to portage, and would almost surely get oil in the wrong places from carrying it at the wrong angle.
Go with the 2-stroke!
JBJ

 

[James R]

Re: 2 stroke vs. 4 stroke for a 9.9 yamaha

I have a 2003 15HP Yamaha 4stroke. I have removed it from my 15ft Duracraft. It is fairly new and performs well except that it is too heavy and weighs the back of the boat down and has no get up. Replaced it with a 1979 25HP johnson which is much lighter and of course has the necessary get up. I will retain the Yamaha in case the local ponds get EPA conscious.
I am not impressed with the 4 strokes. They are of automotive design and will not stand up to the punishment that we give outboards. BRP are smart in staying with 2 Strokes.

 

[richardgreen]

Re: 2 stroke vs. 4 stroke for a 9.9 yamaha

Go for the Yami 2 stroke and you won't be disappointed. Very little smoke with the 100:1 mix, lower cost, less moving parts, less weight to carry, less weight on the back of your portage boat. Just be sure to run the Yami brand 2 stroke oil and it will run forever...

RG