Hi, just bought a 1972 Yamaha RD350. Is a project 90% done. NEW PISTONS/RINGS and bunch of things the previous owner did. What it needs is to connect the carburetor hoses, few cables, seat foam/cover, grips and chain.. and go from there I guess. My question is. What oil should I use for the engine? and what kind of chain this thing uses? any good place to buy stuff for this old bikes? Thanks in advance.