Guessing off road at least 20 years. Bore and piston look good/oil at correct level. One conrod circlip was incomplete/damaged(the curly bit to fit it missing).
Turning the engine over....mucho noisio/rumblio down below !
I've had these bikes before and they are normally quite bullet-broof....I was hoping a good plan might be to fill the engine with something suitable and let it sit and work it's magic......or am I being unrealistic. John (in the UK).