Good morning, I recently purchased a RL to restore - does anyone know what engine the RL crosses over to? I need a chain guard cover for the left side. 

Thank you in advance. 

TS 250 models R, J, K, L, M 1971-1975.

I figure you are asking about the part that attaches to the rear edge of the flywheel cover and covers the front sprocket.

https://classicjapanesemotorcycles.com/products/suzuki-ts250-rl250-sprocket-cover

http://www.beamishownersclub.com/for-sale/

you'd better off posting in the suzuki/beamish section.