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Old 15 June 2014, 07:28   #41
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Ahah good to know!

Judging by the name and style I guess these Mercurys were American made?

The Mercury is being sold for 250€. Half the price of this Tohatsu:

Motor Tohatsu 9.9 HP - à venda Outros veículos, Lisboa - CustoJusto.pt
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Old 15 June 2014, 07:42   #42
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Buy the Tohatsu, uprate it to18hp, job done
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Old 15 June 2014, 07:52   #43
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15 hp is the maximum for my Suzumar. Is it easy to upgrade?
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Old 15 June 2014, 11:05   #44
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Buy the Tohatsu, uprate it to18hp, job done
U can't upgrade a 9.9 to a 18 HP direct, will need to install 18 HP bigger pistons, work done at a machine shop and assuming it could be done. 9.9/15 are 250 CC, 18 is 300 CC.

Much faster and cheaper is a 9.9 to 15 HP.

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Old 15 June 2014, 11:19   #45
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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.
On those models you had to tear the whole powerhead appart to change pistons, don't know what they were thinking when the engine was market released. You can tell if it's a removable or non removable cyl head by checking if it has bolts or not that secures cylinder head to crankcase.

Better go for a 9.9 and upgrade to a 15 HP if that can be done fast and cheap like the Tohatsu. Cheap and old is not always best and if complicated to work with worst.

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Old 15 June 2014, 11:41   #46
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Ok, thanks! So to upgrade de 9.9 to 15 hp is just the carbswap or also needs exhaust porting?
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Old 15 June 2014, 12:17   #47
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Ok, thanks! So to upgrade de 9.9 to 15 hp is just the carbswap or also needs exhaust porting?
It's as simple as eating an ice cream cone, just a carb cam swap + probably slight + timming, will need to check that out. Would be perfect if you could provide end letter atached to 9.9 ? to check if that's the current model or the previous one.

Why is it that few trusts big shops, when they should be the ones to go after as opposed to small ones who haven't grown.

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Old 15 June 2014, 12:40   #48
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That's cool. If I end up going for that engine I'll provide the end letter (if there is still one ).

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Why is it that few trusts big shops, when they should be the ones to go after as opposed to small ones who haven't grown.
From my experience big shops are big because they know how to sell. If they notice that you don't know much about the matter, they will try to make you buy stuff you don't want/need, plus charge you tons of money for simple tasks.
I once paid 50€ in a big bike shop for them to tell me that my bike sucks and couldn't be repaired for less than 1000€, so that I would buy a new one from them. Moral of the story, I repaired it myself with brand new parts and spent less than half of that. Now it's running as smooth as a baby's ass.
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Old 16 June 2014, 23:09   #49
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Today I went and saw the Tohatsu 9.9. It started second pull and then stopped after some seconds. Turns out the last guy that used it didn't clean it with fresh water. After some cleaning it started working again and everything seemed ok to me. The thing is, I'm no expert and I don't whats normal or not.
The engine is being sold by a outboard motor repair shop and they said they serviced it and checked everything. This gives me more confidence than buying it from a private seller.

Here are some pics:

http://i306.photobucket.com/albums/n...o/CAM00219.jpg
http://i306.photobucket.com/albums/n...o/CAM00218.jpg
http://i306.photobucket.com/albums/n...o/CAM00217.jpg

I think it looks ok. I don't know what happened to the stickers (too much sun?) but the paint looks fine and the inside looked like new. No rust at all.

The price is 500€ with fuel tank. Do you think it's a go go?
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Old 29 June 2014, 20:25   #50
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Can anyone of you guys with knowledge on the matter give me some input on this engine?

How much should it weight? Why does it look so massive?
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