The sealant is like tough RTV and you would need to redo it each time. If you buy some, the tube is the size of a medium tooth paste tube so you have plenty. As for setting the gap, I've not done it. However, I think you rotate the engine until the tab is at the sensor to set or check the gap. If they need adjusting (in your case replacing), you loosen slightly the two mounting bolts, insert something of the correct thickness (feeler gauge or correct thickness of cardboard), push it lightly up against it, then tighten the bolts back up. Check again for follow-up (after tightening).
If you need to turn the crank shaft, rotate/rock the rear wheel while shifting up to 6th gear then rotate/bounce the wheel until you get things lined up (it will take some force to do this with the plugs installed, or use the starter which is probably the easiest way to do it. I believe there is a possibility of damaging a shear pin if you try to turn the crank with the nut pictured. That's a pretty wide range for the gap, .0197 - .0354 inches, so it should be pretty easy to come close just as long as both coils have equal gaps.
That sounds good. I never tested them, but the engine they came out of ran fine except for having a bent rod. If one of your pick-up coils read 0 ohm's, it is bad. As far as setting the air gap, take a regular business card and fold it in half. Put it between the pick-up and the ignition rotor, tighten the screws and forget about it.
I am back on the road, Thanks to all of you and a Special thanks to txfatboy for sending the parts...
First i installed the pickup coils and put it back together and started it up, still running on 2 cylinders so i swapped the CDI Box and it fired up on all cylinders and ran fine, i have not went for a test ride yet but i am going riding now to have some fun.
Oh the cover gasket came off clean and went back on clean, but if it starts leaking i have 2 new gaskets in my tool box
So i think when the CDI box went bad it took out the pickup coils with it, is that possible, has it happen befor? because the old pickups had bad readings, one tested .0 and other was .195