the bike and i have been down a while due to a crash on the suzuki and using the time to get some speedy stuff done, like a new front tire and goodies from fast eddy. thing is, i don't remember how the speedo sensor/drive is situated at the axle. there's a stop on the fork, and i *feel* like the lump on the sensor where the cable comes out should be behind it, but it's able to rotate freely on there, and i really wanna make sure it's on right when i finally do get back on the road. so a decent pic of it on there would really be a huge help. thanks in advance.

here it is in my barely readable bootleg manual. is it supposed to freely rotate like that though?