Hi All Girlfriend recently brought a '97 zzr 250 ninja. In great condition except for a really loud engine rattle that I have put down to the cam chain. Looking at many different websites and workshop manuals they all say that the bottom end of the engine has to come off thus making it quite a large job but I should be able to handle it myself. Does anyone who has performed this fix before have any tips or tricks I might find usefull. Also what other parts except for the chain itself will I need? I figure the clutch and stator cover gaskets but anything else? Thanks in advance.