Originally Posted by
l.ho
honda originally used standard ATF (red) when CVT-F wasnt developed, and people started having issues with their starter clutch. the initial solution was to replace the starter clutch under warranty, but changing the transmission fluid to CVT-F later became the preferred solution (much cheaper). i remember reading somewhere on ozhonda that there was a free transmission fluid change (a few years ago) for jazzes still under warranty.
a few months ago i called up my local dealer and managed to talk to one of the technicians about the cvt shudder. he said that changing the transmission fluid had fixed problem every time, and the need to change the starter clutch was quite rare. the standard procedure was to flush the fluid, then if the problem reappeared, flush again. if that didnt work, the starter clutch needed replacing. he told me the shudder was due to contaminants on the starter clutch arising from 'old' CVT-F.
you should open your bonnet to check where the noise is coming from. if its from the engine, then you will most likely need a valve adjustment (tappets). if its from under the airbox (i.e. from the transmission), then its most likely the transmission. also have someone hold down the brake and select 'D' to replicate the noise. (im not actually sure if this will help, but its worth a try :P)