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Old 24 August 2012, 21:18   #61
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However.. means can do it in stages!
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Old 24 August 2012, 21:23   #62
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My motor is very new, and i'm trying to sell it and get an older 50/40 HP thats not visually in the best condition. Preferred Motors are as usual Yamaha or Mercury.

I then have my 2 hp outboard for emergencys.
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Old 24 August 2012, 22:36   #63
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[QUOTE=Mextli;483416]Sorry for my absolute incompetence, but what is 2-pack? ):[/QUOTE


2pac.com | The Official Website
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Old 25 August 2012, 07:13   #64
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Thanks i don't fancy hip-hop though...
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Old 25 August 2012, 15:38   #65
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50 HP is the max hp that the SR4 can take... Or is more possible?
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Old 25 August 2012, 17:43   #66
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You don't really want to put more than 50hp on one-they are INSANE with 50hp. Any more and you can't really use it unless it's mirror calm.
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Old 25 August 2012, 17:51   #67
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Ok then I'll go for a 50 HP long-shaft.

Where i live there are lots of 60 hp ones cheap...

Someone i know has reinforced the hull and is running the thing with 85 hp
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Old 25 August 2012, 18:21   #68
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Can any of you SR longtimers (Nos etc?) comment on my earlier post re, lighter 40 vs 50 etc? Cheers chaps.
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Old 25 August 2012, 18:41   #69
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I'm propably going to get a "heavy" Merc 500 Thunderbolt, though I'll have the old set - up with the seats up front and the motor in the back
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Old 25 August 2012, 22:10   #70
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I seem to remember from previous topics that a SR4 with a (lightweight) 40hp 2S came very close to the heavier 50hp 2S in performance (pick up is a prioroty rather that a few more kts on the top end) - can anyone confirm this and suggest which 40 is the one to aim for? I'm looking in the near future for the lightest weight SR4 rig I can find to beach launch (in suitable seas) 2 up.

And the fuel consumption at WOT per hour?
I have the 50hp 2st yam power tilt & my brother inlaw had one with a 40hp 2st with out power tilt & it could keep up with me no problem same sort of fuel consumption just if you do a lot of beach hopping it is a right pain not having PTT Nathan on here bought it if you want more info!
Look at just under a litter per mile
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Old 26 August 2012, 09:50   #71
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Ive got an SR4 with a 40 hp 2 stroke PTT Mercury which i've tried to keep as light weight as poss and find is a well balanced setup
After experimenting with different props i get good top speed and acceleration and fuel economy is good too
I think the engine weighs around 76 KG
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Old 26 August 2012, 10:24   #72
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Can any of you SR longtimers (Nos etc?) comment on my earlier post re, lighter 40 vs 50 etc? Cheers chaps.
Depends on the 40 and the 50hp. A Yam 40hp is better than a Merc Thunderbolt 500 for example, but a with good PTT 50hp Yam/later Merc etc 2 stroke it will be a really fun beast.
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Old 26 August 2012, 18:41   #73
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So if i am running a thunderbolt with the old set up(seats up front) there will be problems? will there be too much weight in the back?
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Old 26 August 2012, 19:07   #74
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I don't have the weight of the old thunderbolt Merc but a 1981 Merc 50 weighs between 76 KG and 87 KG depending on model spec and the thunderbolt being the same 4 cyl engine would be ok
In comparison with engines from say 1984 onwards if yours is in good condition i think you would be looking at between 40- 45 Hp with that engine
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Old 26 August 2012, 19:36   #75
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Ok so the Thunderbolts are ok

In germany, most 50 HP outboards are Thunderbolts, and they are cheap, so
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Old 27 August 2012, 00:06   #76
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A Thunderbolt will push it ok,I ran an SR4 with one on for a season. It'll go like it's got a 40hp Yam on it, and be a bit bum heavy and use more fuel than a later 50hp.

Ie, you'd be better off with a 40hp Yam or a newer 50hp with PTT, but it'll do the job.
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Old 27 August 2012, 07:01   #77
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Ie, you'd be better off with a 40hp Yam or a newer 50hp with PTT, but it'll do the job.
Winter is coming now, and i'll see if i might get one at a reasonable price.
The boat has to be operable around christmas, so i still have almost half a year
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Old 27 August 2012, 08:22   #78
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Thanks for the info. Is there a particular model 40 2 stroke in the Yam range or others to make sure to get (say from the last 15 years) - ie are some 2 cylinder or 3 cylinder?

If not Yam what is the best alternative makes for a lightweight?
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Old 27 August 2012, 10:03   #79
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I have a Mercury 2 cyl 40 ELPTO year 2000 which weighs 75 Kg
I think the Yam 40's were all 3 cyl so will be a smoother engine but will be a bit heavier about 80 Kg with power trim
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Old 27 August 2012, 10:10   #80
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i'm looking at the 4cyl Mercury 500 Thunderbolt, possibly with a Panther Power-Trim bracket to fit after trial-runs.

First i have to sell my old 25 hp though ...
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