thanks for replying guys i appreciate this very much.
These are thedetails of the stroke etc:,
Displacement 248ml
Bore×stroke 69×66.8
Compression ratio 9:1
This is my quad along with the front fairing thats off the vehicle its supposed to be a wd baja qj the engine num starts with a QJ 169MM*4000612* if this helps.
hope these help