4 strokes and border waters

[bwtrout]

i'm looking at a 4 stroke 20hp short shaft honda. seems to me like this would be a better choice for the 25hp limit border lakes. lighter (125# vs 217#?) and easier to pull start. i've got a good price on the 20hp. will i lose that much power going with a 20hp? i'm told the 20hp is a 15hp block (2 cylinder vs a 3 cylinder?) i would be running a bare bones deep 'v' 16' boat.

[Guest]

Are you sure you can run that short shaft on such a big boat?

I've got the bigfoot (long shaft)15hp Merc on my WC14 Lund and I wouldn't be able to run a short shaft on it.

Did you check this out already?

As for the 2 vs. 3 cylinder I'd say you're fine...

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Chells

[bwtrout]

a short shaft (15") will work. i'm interested in hearing any info on a comparison also.

[NotoriousBLM]

Sounds like you've already made up your mind on motors. If a 20% reduction in power is worth the difference in weight, why not go with the 20? I don't think the difference in top speed would be worth taking into consideration.

Buy what works best for you and your situation. (Same works with your vote )

I should add that the difference between a 15 and 20 is probably just carb settings...
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"Nothing says business in the front and party in back like a good mullet."

[This message has been edited by NotoriousBLM (edited 07-14-2004).]

[AaronM]

What are the power comparisons between a 2 and 4 stroke? If I was looking at a 25 horse, would there be much of a difference? (I hope you dont mine me jumping in here bwtrout) Thanks!

[Surface Tension]

Are these weight comparisons between the 20 and 25 hp 4 strokes?

[NotoriousBLM]

On Honda's site, the 15 and the 20 have the same displacement (21.4 c.i.) and the same bore and stroke (59mm x64mm). So they would have to be tuned differently. Wt is 116# either way.

The 3 cylinder 25 HP is listed at 184# dry.