Hi all. I’m new to the page. I recently purchased a pair of 1971 JT-1 mini enduros that I plan on fully restoring back to their glory days. Part of the restoration will include going through both engines. That’s where I hit a major roadblock. I want to bore cylinders and replace the pistons and rings. Does anybody know if there is a piston that will work with the JT-1 that was designed for a different model. What are my options? Any information would be greatly appreciated and very helpful. Thank you in advance.