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Author Topic: Riken Honda piston rings question  (Read 188 times)

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Offline slyguy

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Riken Honda piston rings question
« on: December 10, 2024, 03:52:58 PM »
New yamiya Honda Riken Std rings, top 2 are identical with no bevel. Just put letter R facing up? I’m at .008 ring gap:)
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Offline HondaMan

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Re: Riken Honda piston rings question
« Reply #1 on: December 10, 2024, 04:54:28 PM »
One of the rings should have a greyish outer face on it, which is the top ring. While you can't see it easily, the 2nd ring has a 3-degree bevel on the bottom of the inside edge - at least, that's what the Riken .025mm rings I used 2 months ago looked like. They weren't from Yamiya, though.
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Offline slyguy

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Re: Riken Honda piston rings question
« Reply #2 on: December 11, 2024, 09:15:07 AM »
On mine the gray rings have the bevel & letter R on the same side but I’ve read bevel down & letter up which is more confusing? Btw pic is a ring which got broken but new one on the way!
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Offline HondaMan

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Re: Riken Honda piston rings question
« Reply #3 on: December 11, 2024, 10:41:47 AM »
The letters go to the top, always.
;)
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See SOHC4shop@gmail.com for info about the gadgets I make for these bikes.

The demons are repulsed when a man does good. Use that.
Blood is thicker than water, but motor oil is thicker yet...so, don't mess with my SOHC4, or I might have to hurt you.
Hondaman's creed: "Bikers are family. Treat them accordingly."

Link to Hondaman Ignition: http://forums.sohc4.net/index.php?topic=67543.0

Link to My CB750 Book: https://www.lulu.com/search?adult_audience_rating=00&page=1&pageSize=10&q=my+cb750+book

Link to website: www.SOHC4shop.com

Offline bryanj

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Re: Riken Honda piston rings question
« Reply #4 on: December 11, 2024, 11:07:21 AM »
I always took that grey to be chromed edge so top ring
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Offline slyguy

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Re: Riken Honda piston rings question
« Reply #5 on: December 12, 2024, 03:38:40 PM »
Thanks guy for the clarification 👍
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