by Tacoclaw » Wed Nov 12, 2014 5:28 am
Your IP has 2 barrels inside of it, one inside the other. The inner barrel has one hole in the side, the outer barrel has 6, one for each cylinder. As the inner barrel spins, and the outer stays stationary, it's hole lines up with a hole in the outer piece. When the two holes line up, that cylinder gets fuel.
Advancement is done by rotating the outer barrel to match up the holes sooner, the spacer allows it to rotate a little farther.
1990 W250 4x4
Rattles, growls, whistles, and whines.