Senior VR Member
Join Date: Oct 2010
Location: Wellsville, Utah
Thanked 124 Times in 108 Posts
A slight bog off idle is an indication of a rich pilot jet, or in FI bikes using the GMan, the green to yellow transition adjustment or the green adjustment. Hesistation or bog is also an indication of a vacuum leak. make sure all it tight and secure.
If it were the fuel pump, you would notice it leaning out at higher rpms, making flat spots when you need more gas. Fuel pumps are easy to check, just remove the fuel "rail" from the injector, turn on the ignition and see how much pressure you get, it should be quite high, like over 25 psi (25-50 psi in most mc Fi applications). You can easily check that by placing your thumb over the orifice and it should squirt pretty far. If no squirt, no pressure.
Email GMan, he'll dial you in.
Hesitation to start (hard starting) is an indication of valves being out of adjustment or your FI controller setting.
Seems everything is pointing towards the FI Controller settings. Make sure you got good gas before any adjustments too.
Why use a big word when a diminutive utterance would suffice?