Fuel Pressure Woes

Terminator2

Site Supporter
Joined
Jun 27, 2016
Messages
15
Age
70
Location
Auburn California
Bike
2006 ST1300
Looking for some input. Smelling some fuel vapor (unable to locate source). Riding the bike up a mountain, attempt full throttle and bike starves at 6800 rpm. At home, I warm up bike, able to rev to redline. Idles properly. Installed fuel pressure gauge. Key on....58psi. Engine start/run...50-55psi with fuel gauge bouncy needle. Key off, immediately drops to 45psi. Quantum fuel pump has 30k on it now-5 years old. Volts to fuel pump 0.5 volt less than at battery engine running. On the freeway she'll rock n roll.

I am only a 'B' student, so all of you A+ feel free to chime in :). Appreciate your input. Hope all your riding days are going as planned. Thanks, Rick
 
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