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Old 11-04-2013, 15:54   #1
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Location: St Catharines, Ontario
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Question Yamaha 5hp 2 stroke bearings

Thanks to a previous topic, I was able to take apart my seized Yamaha powerhead
Now I want to put it back together
I have one slight problem though
My outboard is a 5 hp Yamaha 2 stroke that I purchased in Guatemala 6 years ago
I'm from Canada. The motor is considered non North American
The 2 bearings on the crank are NSK 6204E14 with a small split pin in the side. They also appear to be ground flat on the one side facing the crank
Although NSK bearings are common, these appear to be made specially for Yamaha
I tried my local Yamaha dealer, but unfortunately they weren't much help

Does any one know where I can purchase replacement bearings?
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Old 11-04-2013, 16:12   #2
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Re: Yamaha 5hp 2 stroke bearings

Just replaced the bearings on my Yamaha 2 stroke 6hp. I bought them here...

Boats.net - New and Used Boats for Sale, Outboard Boat Motors, and Discount Outboard Boat Parts

I had to buy a good puller set to extract and install them... they are pressed on pretty tightly.
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Old 11-04-2013, 16:23   #3
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Re: Yamaha 5hp 2 stroke bearings

I found that the lower bearing was quite bad, as that gets splashed a little I think - you can see it looks corroded. I didn't replace the other two - god knows how you do the middle bearing - looks impossible.

Edit - yours is single cylinder, so only two bearings. Mine is twin, hence 3.

Edit edit - I have a brand new 93306-204U0-00 crank bearing in a box. Let me know if you want it. This part is listed for the 5SF, and 6SF (and 8SF)
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Old 11-04-2013, 16:43   #4
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Re: Yamaha 5hp 2 stroke bearings

Thank you, I couldn't find the right bearings on their site when I did a search, so I made an inquiry
Hopefully they can find them

I don't understand why a large company such as Yamaha doesn't have an international part order site for the products that they sell
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Old 11-04-2013, 16:53   #5
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Re: Yamaha 5hp 2 stroke bearings

My Yamaha is a 5CSMH , I beleive it is a 2007
I don't see it listed there
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Old 11-04-2013, 17:16   #6
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Re: Yamaha 5hp 2 stroke bearings

I found this site with parts lists.

http://www.afmotorscur.com/downloads/2stroke4HP-5HP.PDF

The bearing is listed as 93306-204U0. It's looking like they use the same bearing everywhere for decades!

I suggest using that site to cross reference to boats.net next time you need parts.

It doesn't look as if the engine has changed much from a 1984 5SN!
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Old 11-04-2013, 17:32   #7
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Re: Yamaha 5hp 2 stroke bearings

I think you're right
Seeing the motor was meant for Central America
They would want something that is easy to rebuild
Thank you for your help
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