SUNDIRO XDZ50QT-B XDZ90T-C Scooters Operation Instruction Owners Manual 1997 Date October 31, 2015Posted by claynes Genuine Hainan Sundiro Motorcycles Owner’s Manual. Covers the XDZ50QT-B and XDZ90T-C Style Scooters. Good used condition some yellowing due to age, printed in 1997. 39 pages of operations, instructions, maintenance and wiring diagrams. Pictures are of actual scanned item.