The sensor is located inside the right side magneto cover. It is also full of oil so you can't just pull the cover off. It is a little square device that picks up the magnetic pulse as the magneto spins by it and sends this pulse to the CDI box. If you changed your sprocket or took the cover off before, you can easily pinch the little wires. It is just a small two wires and they come through the cover right near the little L shaped backet thing that holds the wires back directly on the two top screws of the sprocket cover. Check there for pinched wires and also check the little rubber grommet the wires feed out of the cover. I have only heard of one of them failing before, but unfortunately I have heard of many more CDI boxes failing.
Procomm is testing new CDI boxes for our motors and they have already made up ones for the 360º motors, brent sells them. Hopefully they will be available soon as theirs are only a couple hundred vs the $500 the dealers want for the original ones.
Good luck with it. Keep us posted.
edited cause I kant spel.
Last edited by Dinqua; 09/12/2006 1:47 PM.