621-136 Reserve
(Off/Fuel/Res)
621-137 Main (Off/Fuel/On)
Lever type 1/4" x 1/4" BSP taps used on late Triumph Twins.
British-Made are metal to metal seal. The Taiwanese economy version are sealed
with neoprene. Used with flat washer 83-0002 against jam nut and 70-7351 bonded
washer against the tank. Uses spigot 623-13 & 623-15 nut. Angled spigots are
also available. Only the replacement econo versions on hand 03/04.
