When the engine is not running or the tank is removed from the bike,
ON & RES act as off & should stop the flow of fuel -->> no fuel flow.
Typical problems: defective vacuum diaphragm, diaphragm o-ring defective or not seating properly, mating surfaces pitted or damaged, worn or weak diaphragm spring.
PRI -->> fuel should flow freely -->> engine stopped or engine running, or tank removed from bike.
1981 KZ650-CSR. Competition, Sports & Road.
Last edited by martin-csr; 04-17-2016 at 02:02 PM.