Whats up guys, I have a old 4 speed with a stock clutch. When I pull the clutch in it kinda makes a rattling sound or grinding sound (only with the clutch pulled in). on take off, as the clutch engages it makes a horrible grinding sound. as soon as the clutch is fully engaged it goes away. goes thru all the gears just fine shifts fine no slipping/ noise as long as the bike is moving but as soon as I stop and try to take off the horrible sound returns I originally thought it was my chain rubbing against my fender (as that is what it sounds like). I checked that out and it clears just fine. the noise is coming from the clutch area on the left side. I also thought it might be my 1st gear so I tried to take off in 2nd and 3rd but it makes no difference what gear its in if I take off from a stop... it happens. also it kinda walks on me when idling in gear. could this be a throw out bearing or worn clutch plates? please help any ideas would be much appreciated. Thanks .....