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Old 02 June 2014, 23:21   #31
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So these are the pics the guy sent me:







Should I go fot it? I think I'll let this one pass and see if I can find what I really want.
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Old 03 June 2014, 12:08   #32
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So I think I finally found what I was looking for: a Mercury 6 hp 2 stroke. Still, I'm not too sure whether it's a short or long shaft. Could anyone help me with that?

Here are some photos:









To me it looks like a short shaft. If you guys can confirm it I recon this would be the perfect engine for my little sib. It's a 170 cc, right?
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Old 03 June 2014, 12:22   #33
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Yes, you found one

That is a short shaft, good engine as well. Keep it serviced, flushed and drained of fuel between uses and it will last forever

Its also possible to uprate that engine to an 8hp, but i'm not sure that the costs are worth it.
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Old 03 June 2014, 12:38   #34
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Since the 8 hp has the same specs, shouldn't a carb transformation be enough? Or it would also need some porting and better exhaust?
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Old 03 June 2014, 15:08   #35
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If posted engine has 2 small water deflector plates that protrude between middle and lower leg right before AV plate it's a L shaft. That 6 seems to be a rebadged old Yam model not the new current rebadged Tohatsu.

In Portugal who would you say has better tech support & spare parts availability Merc or Tohatsu ?

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Old 03 June 2014, 15:26   #36
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I don't know for sure, but I would say Mercury since it's quite hard to find new Tohatsu engines for sale.
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Old 03 June 2014, 16:37   #37
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Tohatsu has not changed much their current models, some minor upgrades which are reflected on side letter next to its HP, are basically same engines up to date. Merc used to have a joint venture with Yamaha, al least some portables up to medium size engines were built for them. If you're not in a big hurry, check if a Tohatsu 6-8-9.8 chimes in.

Those mentioned models are much simplier and friendly to service and update than the posted Merc 6 HP. Some Mercs used to have a big issue, the cylinder head was not removable, was solid built to the crankcase, a hassle for piston/cylinder head decarbon, internal clean out of salted, clogged water passages around cylinder head, don't know about that current 6 though ?

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Old 03 June 2014, 16:52   #38
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Are you asking me if I know if this is one of those Mercs? Cause I have absolutely no clue... hehe. Besides what was told me in this forum, I have absolutely no knowledge boat wise. :P

If that's the case, how does one change this piston rings?

In terms of service and maintenance, I intend to do everything on my own since I don't really trust big shops. Been this way with motorbikes and bikes these past times.
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Old 14 June 2014, 22:23   #39
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Haven't had any developments so far, which is a shame. But I am planning on getting an outboard by the end of the month.

I have had a slight change of plans and I'm probably taking my license next month. So now I am thinking about going bigger, up to 15 hp.

Any suggestions? I was thinking Tohatsu or Mercury 9.8 or 9.9 2 stroke.

Do you think that an older engine like this one is viable? I can get one really cheap...

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Old 15 June 2014, 07:07   #40
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I'm not a big fan of 70's Mercury's. Even when they were new they were not exactly reliable.40 years on, I wouldnt fancy my chances with one.

My dad had a Mercury 50 on the speedboat and a 4.5 on his sailing dinghy, I honestly dont remember a weekend when both of them were working

But I guess it depends how cheap it is, it could be a bargain. If you do buy one, dont forget to buy a truck load of Easy Start as well.
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