I think he is talking about the chrome engine hanger covers, which are a Hondaline accessory. It's been a while, but I THINK no spacers are used in the petcock bracket hole, 2 spacers on the frontmost hole ( 1 on each side of the coil bracket) and 1 on the bottom hole, between the coil bracket and engine hanger. Hope that makes sense. I'm going from memory.
Yea, after I posted that I was thinking might of been talking about the chrome hangers. I done the stud mod to mine years ago. I don't worry about those spacers anymore.
I remember the first time, dropping spacers and thinking I'd never find them again.