[Fermaxzx6rr]

I was wondering what can be the difference between those two models bc I wanna put an engine of a zx600j on a zx600n frame and I can’t tell the difference on pictures only, any help would be appreciated thanks in advance!

 

[riverszzr]

lots!
you would need to relocate engine mounts, electrics and so much more

Youd spend more time and monies than simply getting the correct engine for your bike!