[Dave at Pelican Parts]

The stock front swaybar is something on the order of 16mm in diameter. The smallest of the Weltmeister bars that I know of is 19mm. That would be considered something of an "upgrade".

The thermostat, when warm, expands. The wire goes slack, and the spring on the flap crossbar twists the crossbar up and forward.

I'd be tempted to check the warm resistance of the head temp sensor, myself...

--DD