My fuelpump on my 99 600f4 wont prime with key.bike runs.ive changed selonoid valve relay,fuelpump cut off relay,transfer relay,tried dif.ign switch,kill switch, jumped nuetral sw. Side stand sw.and now looking for diod in the pink ign.wire.unwrapped no diode.all original have had for yrs.why no diode?does anyone know?Thanx✌✌

 

The fuel pump shouldnt prime with key on, these are carb engines and dont require very much fuel pressure, if it wasnt for the design of the engine and card location then it could be gravity fed like most other carb engines.

 

The diode is in the ignition switch.