The clutch works when shifting the bike into gear either initially or moving. However, if the engine stalls going down a hill, pulling in the clutch does not allow the rear wheel to turn so I can bump start the bike. I use JASCO for the tran oil and it turns dark gray after a few rides. The air filter is clean. The bike is a 1996 Suzuki RMX250 with low mileage and with the OEM clutch parts. I appreciated your responses that will help me with this concern. Thanks