that all makes sense.
next weekend when i re do the top end and i get to the part of the exhaust, i'll try to dry fit my pipe in the new head. maybe it'll fit better on this one.
i'm just trying to get instant results without having to shim, then test, re shim, test again, then end up using silicone and wait 24hrs. crawling around on my hands and knees for half a day is no fun.
Exhaust paste in a squeeze tube.
One of a half dozen of the same type.
The paste is mostly diatomaceous earth and silica mixed with sodium silicate.
Old school simple, cheap, effective, won't burn up, lasts indefinitely and you can ride the same hour.
Scrub the carbon from the exhaust pipe recess in the head and from the pipes exterior with stiff brush and evaporative solvent.
Knead the tube well to completely mix the ingrediants before use, coat the recess and the pipe. Drive the pipe home with a wood or rubber mallet, wipe off the excess.
Give it 10-15 minutes to dry to the touch then start the bike and let it idle till normal temperature is reached. Shut it down to let it cool a bit while you go get your gear on. This sets and bakes the sealer hard.
Fire it up and go ride.
* Boilermakers, furnace and kiln repairman will recognize this.