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Piston Rings

creaser
in Gas Gas

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Hi. I have a 2010 txt 300 pro raga which I am about to replace the main bearings. As the engine is apart I thought it may be a good idea to change the rings. My question is has my engine got a s3 piston fitted as standard. Also do you think it is a good idea to get the crank balanced while it is out. Thanks

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     It probably has an S3, but you will not know for sure if it is or the size till you have cleaned her up. The crank should be fine, unless the rod is bad.

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