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Old 23 January 2012, 18:47   #1
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Mariner 25 hp v 30 hp weight

Hi Team Rib

Anyone know what the weight difference is between a 25 & 30 HP 2 stroke mariner?

Short shafted with tiller control and pull cord start?
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Old 23 January 2012, 19:30   #2
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I think they are the same engine, are they not ?

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Old 23 January 2012, 19:32   #3
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Quote:
Originally Posted by Boats&Outboards View Post
I think they are the same engine, are they not ?

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hence the question?

you should no Pete your the expert!!!!
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Old 23 January 2012, 19:42   #4
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Originally Posted by Bongy

hence the question?

you should no Pete your the expert!!!!
Ha, yeah right.

Looks the same to me.

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Old 23 January 2012, 19:48   #5
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25 seems to be heavier than the 30 ? Cowlings look differant ?

I want a 30 !
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Old 23 January 2012, 20:17   #6
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Quote:
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25 seems to be heavier than the 30 ? Cowlings look differant ?

I want a 30 !
i'm thinking of trying one on the 380 Pete - is that what you are going to do?

Al
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Old 23 January 2012, 20:35   #7
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Same engine, just a plate behind the carb to restrict the flow.
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Old 23 January 2012, 20:36   #8
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Ha, yeah right.

Looks the same to me.

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The spec on the 25hp you have put up, that engine went out of production in about 2008.
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Old 23 January 2012, 21:02   #9
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I know, as did all 2 strokes (for leisure use at least). As the OP said he wanted 2 stroke I'm assuming he's buying used. Had he said he's going new I'm sure he would have advised he's buying commercially, or going 4 stroke!

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Old 24 January 2012, 20:09   #10
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the 30hp is a Tohatsue build and the twenty five is a mercury build
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Old 24 January 2012, 20:58   #11
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I know, as did all 2 strokes (for leisure use at least). As the OP said he wanted 2 stroke I'm assuming he's buying used. Had he said he's going new I'm sure he would have advised he's buying commercially, or going 4 stroke!

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Good point!
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Old 24 January 2012, 22:16   #12
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There used to be 2 versions of the 25hp motor available - one was derived from the 20hp and the other from the 30hp. As uncle al said, one a Merc and the other a Twatsoo.
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Old 27 January 2012, 04:01   #13
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As far as I know Mercury has stopped producing the USA built 20/25hp 2 stroke and now sell the Mercury/Mariner 25hp as a restricted 30hp and the 30hp as the same engine but no restrictor. As such, no difference in weight IF you are talking about the Japanese (ie Tohatsu) models. Is it a brand new engine or?
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Old 27 January 2012, 12:10   #14
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So after all this I'm sort of hoping that my 2004 25hp is a mercury engine built in the US and might be able to be upped to 30 if it has a restrictor between the carb & engine ?

I just know I wont be lucky enough for that all to be true though
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Old 27 January 2012, 13:07   #15
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Quote:
Originally Posted by PeterM View Post
So after all this I'm sort of hoping that my 2004 25hp is a mercury engine built in the US and might be able to be upped to 30 if it has a restrictor between the carb & engine ?

I just know I wont be lucky enough for that all to be true though
If it's one of these, then you're out of luck:
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Old 27 January 2012, 13:20   #16
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Quote:
Originally Posted by PeterM
So after all this I'm sort of hoping that my 2004 25hp is a mercury engine built in the US and might be able to be upped to 30 if it has a restrictor between the carb & engine ?

I just know I wont be lucky enough for that all to be true though
Bad luck. Yours is Belgium built. If it does turn out to be up-ratable then don't forget to send down the extra £300 for the extra 5hp

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