1988 Johnson/Evinrude "CC" 40 thru 55 Models Service Manual, Page 86Get this manual
Hose and Primer Bulb Assembly
To disassemble hose clampsgrip clamp with pliersBend overlapping hook backward (in direction of arrow) to release clamp
To assemble hose clamps, grip clamp firmly with pliersApply slight pressure to hook on topside with screwdriverSqueeze clamp with pliers until hooks interlock