4 stroke outboards

[likwid]

ARE FREAKIN HEAVY!#*!@_#!!!

a 6.6hp weighs in at just over 90lbs!

but boy are they quiet and smooooooth!

[Slipknot]

your pms are full

my 9.9 honda is a killer at 115 lbs

[likwid]

Fixed.

And yep, got a 9.9 Honda down in the basement too!
Glad that dosen't get used very often...

Although I may sell it to fund a used 2stroke 25-30 for a plywood skiff.

[Mr. Sandman]

hondas appear to be the heaviest of the 4 strokes.
I have been comparing new engines for possible re-power:
engine weight

yamaha 150 4 stroke 466#

Yamaha 150-200 2 stroke 475#

Suzuki 140 4 stroke 421#

Evinrude 150-175 2 stroke 405#

Honda 115/130 4 stroke 505#
Honda 200/225 4 stroke 600#

There was an interesting boating-review show on TV about a week ago. It was sponsered by mercury and they did a good comparison between their 4 stroke and 2 FI stroke 225. They had 2 identical boats (about 26' CC) with the same fuel and passenger load. The boats each had twin 225's. One was FI 2 strokes the other 225 4 strokes.
They compared measured noise level, fuel consumption and speed for the full range of RPM. They also measured acclereation.

I have to say I was disapointed in the results.

The noise level was only better at very low speeds
The fuel econ was not much better and at some speeds the 2 strokes were better.
The 4 strokes were 7 knots slower at WOT
The accleration was poorer for the 4 strokes.
The emmision levels were very good (both exceeded 06 requirements)

The conclusion from the reviewer was "it boils down to personal preference...both are good choices" Huh? I guess he did not want to offend the sponsor...

They did not mention cost...I think the 2 strokes are a much better bang for the buck at this point.

I just got a quote for twin 150 yamaha 4 strokes (which are about 60# heavier per engine then my curent 2 stroke 150's)...I am suffering from sticker shock. with all the crap ...gauges, install ect. I am looking at 32.7K + tax
For a frikkin pair of crap OBs . You could by a Cat diesel for less then that! This industry is out of control. They are simply not worth that.

[fishsmith]

The 4 strokes are heavy and at higher rpms, they're just as noisy as a newer 2strokes. What I really like about the smaller 4 stokes is if your using a portable gas tank, you can just put the left over fuel in your car, so you can always run fresh fuel in boat motor.
This year I've been fortunate enough to spend alot of hours on 2 boats with new 225 4stk yammis, a 23 grady gulfstream and a 23 parker sportcabin. What I found stange was the Gradys motor had a max rpm of 5500, and the parkers goes up to 6100? The parkers motor has over 200hrs on it, the grady is just over 20hrs.

I'm looking forward to see what the the new rude etec's do.

[likwid]

The low hp 4 strokes are definitely far more fuel efficient than their 2 stroke cousins, esp. at trolling speeds.

I can pull the fuel disconnect on the 6hp at idle and it'll sit there and putt away for twice or more what a 2stroke will do.

Also the conveinence of no oil in the fuel is great, its great to just put in fuel, check engine oil and go and you're good.

That said, while I'd love to throw a 4stroke onto my project 16 or 20 foot plywood skiff, I'd rather have a back left after pulling it once. So I'll go with probably around a 25hp 2stroke merc. Which weighs about the same as the Honda 10hp's.

[NEXT2NUN]

I was thinking of updating my skiff motor , from a 20 HP 2 stroke Merc to a 15 HP four stroke Yamaha. The 20 is over kill on a 14' Carolina skiff. Does anyone have one and what do you think??