Repower 20'SF
 

I was wondering if anyone would use a 150 Yama HDPI to push a 20'SF? It currently has a 200 Johnson. I found the 150 for a really great deal, but I don't quite know about losing the 50 extra HP. Thanks in advance.

Re: Repower 20'SF
 

A 150 will be fine a 200 is over kill, my MA has one but it came with it.

Re: Repower 20'SF
 

Thanks Egg.

Re: Repower 20'SF
 

ESD, Thats your opinion, I rather enjoy getting on a plane in the length of my boat. :rolleyes:

Re: Repower 20'SF
 

I have a 2003 Johnson 150 two stroke on my 1971 SF 20 and it goes like hell, even with a boat load of people it climbs right up on plane and runs great. At 3000 RPM I cruise about 27MPH according to the GPS.
Jerry

Re: Repower 20'SF
 

Thanks guys, I just bought the 150 I let you know how it works out when I get it rigged up. Later Ken

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Yes the 200 will launch a 20 but he got a good deal on a 150, and that should be fine, the $$$ come into play.

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I've been on Bobber's 20 with the 200 and didn't find it overkill, but the whiplash is much better now, thanks...

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Don't get me wrong I am a gearhead and really like having the 200 ALOT. Just a 150 works just fine and he had a specfic motor in mind. I'm the one everybody argued about when I said 150 minimum when the guy was asking about a 115, remember.

Re: Repower 20'SF
 

The old engine is now off the boat. I will be installing the new one this week, and be fishing by next weekend. :D
Thanks for all the feedback. Ken

Re: Repower 20'SF
 

canes,
if i may ask what year is the 200 johnson on ur boat?

Re: Repower 20'SF
 

It is a 1982 200HP Johnson Oceanmaster.

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Canes

I have a 2001 SC 20MA with a 150 Merc EFI 2stroke outboard. The boat rocks, plenty of power for this hull. I get on plane in a boats length and with a full trank and six people on the boat - extra passage/gear weight with this combitation doee not effect speed much but gives a smoother ride thru the chop. 150 hp outboard is a litle over powered then a 135 hp which is many cosider the sweet size - 115 hp for me would be under powered. I like speed when possible - next motor may be the new Zuke 175 hp 4stroke.

Re: Repower 20'SF
 

i have an '85 150 evinrude on mine. i know its a tired motor but it still runs 38 mph at WOT. gettin rid of it for a 89 200 merc.

Re: Repower 20'SF
 

Blue good luck with the '89. I just figured it would be cheaper in the long run to buy a more fuel efficient engine. The old 200 Johnson only got up to about 30 mph WOT.
It only had 5 good cyclinders. I was burning about 15 gph :(at 3200 rpm going 25 mph. I will let you know the numbers I get with the new engine.
Ken

Re: Repower 20'SF
 

Canes, You really had a sick 200 for those kinds of numbers. My T-top acts like a parachute but I'm still in the mid-50's WOT.
http://img.photobucket.com/albums/v2...t/withtabs.jpg

Re: Repower 20'SF
 

i run a 130 yama and this motor is great

Re: Repower 20'SF
 

roger that

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I just started to break in the new 150, and I must say it comes out of the whole alot faster. :DI wish this storm was already gone :mad: so I could see what the 150 will do at WOT. I'll keep you posted. Ken

Re: Repower 20'SF
 

hey
i do not mean to ji-jack this thread but need an opinion on the same subject. would u rather have an 84 merc 200 with 1 owner and probably 100 easy hours max or an 89 200 merc with at least 3 owners and been ran very hard? i need opinions from experienced boaters.

-evan

Re: Repower 20'SF
 

Evan, I'm thinkin I'd take the Johnson.. ;)

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the 84 merc is almost ready to be bolted on. i just have to sell my evinrude and buy new steering first..
-evan

Re: Repower 20'SF
 

Blue197320 - sounds like you've already gone for the 84, low hours one owner - that would have been my choice -

IMHO, most original owners take pretty good care, but once it goes around the block and the new owner considers it a cheap, used engine, he has limited expectations and takes reduced care - extend that to the 3rd owner, and now it's a cheap, run it till it breaks and replace it, item, and it's probably getting just that kind of service attention.

I feel very fortuneate with my 83 Johnson, but then I knew before buying the boat/motor - the boat was original owner, bought in 73, he repowered in 84 with an 83 leftover, and the original owner sold last year when he was too old and infirm to use it any more, with very reduced useage the last 6-8 years, and always professionally serviced at the same marina - the broker knew the gent thru the years, said he was a meticulous maintainer, and it showed - and so far that engine, knock on wood, has behaved well for me - but being an engineer, I've also spent a fair amount of time going over it and staying on top of it. A lot of folks, who would never think of flooring the gas in their car and driving that way, appear to think nothing of doing just that with their boat, at least it appears with outboards, and then wondering why they break ??? If you're gonna run a motor wide open throttle continuously, like a Nascar driver, expect to be rebuilding continuously, just like the Nascar boys do - fact of life.

anyways - good luck with yours.

Bill