Carf-Models Chengdu J-10 Instruction Manual page 19

Main*and*hopper*tank*
Use&a&very&short&6mm&festo&tube&for&the&clunk&line.&The&clunk&is&placed&in&the&cubic&center&
of&the&hopper,&it&is&not&designed&to&move&at&all.&&
For&the&breather&tube&(connecIon&to&the&main&fuel&tank)&use&a&piece&of&tygon&and&cut&&a&
"V"&shape&to&the&end,&that&makes&sure&you&get&as&much&as&possible&air&out&during&refill&.&
The&wood&parts&of&the&hopper&tank&mount&are&self&explaining.&Glue&them&together&with&
thick&CA&glue&and&mount&the&hopper&with&a&strip&of&Velcro.&