Yamaha RD400 engine transmission clutch kicker shaft lower end crankshaft ahrma

Description

This engine came out of my rd400. My rd400 came with a running engine in it and the numbers matching engine fully rebuilt and ready to go. i ran the engine that came in it for a couple years and i just swapped engines and put the numbers matching engine back in it.
I ran this engine for a couple years then i pulled the heads and found scratches in one of the cylinders so i put the rebuilt engine in it now im selling this engine.
transmission shifts good
clutch works good
good splines on kicker and shifter
small end of rods are smooth
rods feel tight
engine turns over smoothly
no cracks in cases
it was running good but top end was showing some wear so i went ahead and put the numbers matching engine back in it