Throttle hesitation...why? - Suzuki Volusia Forums : Intruder Volusia and Boulevard Forum

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Old 05-24-2011, 09:39 PM   #1 (permalink)
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Default Throttle hesitation...why?

I just recently noticed I am having a slight hesitation of the throttle when I am switching gears (not every time, but enough that i noticed it might be a problem)

I have an 09 c50 and i have aftermarket exhaust, gman stealth intake, and gman fuel controller...

can this be due to the settings I have the fuel controller at???

ohhh yaah and the bike once yesterday and once today hesitated to start for the first time since ive had the bike

Thanks for your help....

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Old 05-27-2011, 10:49 AM   #2 (permalink)
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fuel pump issue maybe? throttle linkage? i would be leaning more towards fuel pump
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Old 06-03-2011, 01:24 PM   #3 (permalink)
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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.
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Old 06-06-2011, 12:51 AM   #4 (permalink)
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thanks for the prognosis doc...


i didnt even mention hard starting in the post and my bike is having that issue also. I was hoping it was only the fi controller. time to send gman an email. thanks
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Old 06-06-2011, 09:37 AM   #5 (permalink)
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BTW when was your last valve job?
Ya know it supposta be done every 7500mi.
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Old 06-06-2011, 10:14 AM   #6 (permalink)
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i only have 3500 miles on the bike.....but thank you for the heads up, now i know
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