Dt3 manifold insulator
mike8162 wrote: The o ring on the carb should be larger than the hole in the insulator. It seals on the flat surface of the insulator not on the inside of the hole. If the o ring protrudes from the slot on the sealing surface of the carb I think it is fine to reuse as long as it is soft and pliable. I am pretty sure they are out of production but you could find an o ring of the same size making sure it is compatible with gasoline.
Pretty sure I read on another thread that DEET has the 'o' rings in stock.