Hey guys! Awesome community here, you guys all seem really helpful and thusly I seek your guys (and possibly gals) help! I didn't want to be annoying so I've been searching frivolously for the last couple of days but I couldn't quite find what I needed! So recently my friend was jogging near his house and saw and XR200r out side of this guys house. We have been looking for a project bike and thought that'd be the perfect bike. Even though it had probably been sitting out for years....BOO! He went and asked the owner if he was interested in selling it, he said for 50 clams we could take the xr200 and a little 1972 xr75 sitting around the corner! Freekin awesome! TL;DR: Two sweet bikes:50 bux. On to my question. We are working on the 1982 XR200r and was wondering is it possible to replace the engine with an XR250 engine? If so what year? or does that even matter? Also, are there any other years of the model that would have compatible parts to work with this bike? Thanks guys, happy to join the community!