minicar: I have a mini chopper (motorcycle) and this engine and transmission was in the bike. I'm doing a full tune up so I bled the entire bike.. What type of transmission fluid should I get and do I need engine oil.. I believe the bike to be a 4 stroke, 4 speed bike with a suicide shift and no clutch Any help would be appreciated. ThanksWhat oil to get for mini chopper engine and transmission?The oil in the engine is also in the transmission.10-40 mc oil is fine.