I need to replace the timing chain tension rod spring in an Xpro 125cc engine. Amazon has a rod and spring that looks the same but does not list it for the 125cc engine. They list 70, 90, 100, and 110cc as what it fits. Is it the same part for the 125cc. What about parts for Lifan engins, are parts for Xpro and Lifan interchangeable? Where can I source parts for the Xpro engine? Thanks for any help, I'm brand new to owning a Chinese ATV.

Timing chain tension rod and spring.

Timing chain tension rod spring after fishing it out through the hole after I mistakingly put it in, in front of the rod. Where can I get a new one?.

 

They are all based on Honda Cub engines. Mostly they are direct copies but some do introduce differences, so you can never be quite sure you are getting parts that are interchangeable. Xpro is probably a name given by an importer, actual makers name will be different. If you can find that from the VIN you may be able to buy the right part, otherwise it is buy something that looks right and compare with the old part to see if it fits.