I would just get a tach off of ebay for any sled that came with one, cut the hole in the hood, and wire it in to the lighting circuit. I believe you need the yellow wire with a black stripe for the hot, and brown with a black wire for ground.
As far as the accesory goes, I dont know exactly on your sled, but somewhere near the key switch on the back side of the cowling you will see a rubber plug that has a cap on it, pull the cap off and plug the heated shield plug in there.
As far as the accesory goes, I dont know exactly on your sled, but somewhere near the key switch on the back side of the cowling you will see a rubber plug that has a cap on it, pull the cap off and plug the heated shield plug in there.