robert graham
Admiral
- Joined
- Apr 16, 2009
- Messages
- 6,908
Well, I'm watching "How it's Made" and they were making automotive thermostats and I learned they are operated by an expanding wax pellet that opens a needle valve, just like the Yamaha Prime Start System!....So I learned something! Wonder if the thermostat on my outboard is also a wax pellet type item?