[5valve]

During slow ride gearbox locked in 1st, then freed and worked flawlessly again.
I do hear some noise now with clutch disengaged and occasional, could even be, extreme chain like rattle sound.

By hand, everything is rock solid, no play, rotates freely, no broken case parts, at least on the outside.

Since currently not really up to tearing engine again, I'd flush it and clean all rotating parts, clutch etc.. Whats would be better, diesel or gasoline?

3rd pic shows really amateurish oil cutout from rekluse.

Only alu, no steel, checked by magnet.

Any experience with that?