I've never changed a clutch on a jap bike, infact never put new plates in a bike clutch but have rebuilt a few on old british bikes, much the same as in the video some only had three springs and what you had to check was that when you pulled the clutch lever in that the pressure plate lifted of square and if it didn't you altered the tension on the springs till it did, never had much trouble with clutches but most bikes were under 50 BHP then, lol.
Another point when starting if the bike hasn't been started for a day or so and any longer it's more important, this is what I do, engage 1st gear pull clutch in and rock bike to free clutch make sure ignition is on put bike into neutral with clutch held in start bike and engage 1st gear it goes straight in without that clunk, the other way is to start it in gear (holding the clutch in) but there is a certain amount drag this way?
Another point when starting if the bike hasn't been started for a day or so and any longer it's more important, this is what I do, engage 1st gear pull clutch in and rock bike to free clutch make sure ignition is on put bike into neutral with clutch held in start bike and engage 1st gear it goes straight in without that clunk, the other way is to start it in gear (holding the clutch in) but there is a certain amount drag this way?