Sorry, I was talking about the thermostat itself not the housing.
The sandwich plate on the thermostat element,has a hole in it with a primitive valve,I've always assumed it was for steam or air to move around the main water tap"thermostat". So if this bead or nipple is missing it allows a small flow of fluid to continually bypass. At a guess over a distance, this could cause temperature to rise. I found one like this in a spare bike I've been fixing. Just wondering what your opinion on it, would be?
Who walks into the Lions Den, and comes out alive?
12 inch apes
1986 A3 series 750
Slash cut stainless mufflers
170 rear tyre
Custom cyane blue paint, wheels included
Relocated regulator rectifier
Stainless washable oil filter
Six pack rack
LED indicators and flasher unit.
Oil pressure hot at 1000 rpm 20 psi, 4000 rpm 60 psi
Shows 67000 kms
Jets 38 idle Mains 120 changed to 40 idle 135 main.