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Chinese piston rings


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Recently I changed a piston and rings on a 1999 TW125 (the same engine as a SR125 i understand). I bought a set from Wemoto which was not genuine Yamaha. There were no markings on the rings and I couldn't say for sure which of the two top rings was which. After much trawling around the internet and leaving a post in the workshop forum here (thanks Airhead for getting back to me), I did come across this site, which might be useful.


Although obviously I can't substantiate it, it does look like the fella has looked into it.

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