For every main jet adjustment position and constant engine speed, while water flow rate remained unchanged, naturally as a
result of the principle of elementary carburetor, instead of engine load and gas throttle position (diesel fuel delivery rate) being changed, water-diesel fuel ratio varied. That is; for example the 1st opening at 2000 rpm, in spite of being WR 2.33% at 149 N m, it becomes 3.45% at 77 N m.