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.
