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Step by step instructions for balancing Throttle Bodies on Cali 1400?

John in PA

Cruisin' Guzzisti
GT Contributor
Joined
Jul 31, 2009
Messages
255
Location
Hollidaysburg, PA
I have Guzzi Diag software, vacuum operated throttle balancing tools, and have done this procedure on other Guzzi FI bikes. However, the setup on the Cal 1400's is new to me, as is the current ECU. I didn't locate instructions in the Cali 1400 shop manual for this procedure.
Has anyone published a specific set of instructions for achieving perfect TB balance at idle and mid throttle for these bikes?

Also, will GuzziDiag software allow me to reset the TPS value after balancing the TB's?
 
Sorry for the poor question.

OK, then it that case, I'm looking for reasons for this new bike to be idling irregularly, sounding like one cylinder is firing less frequently than the other, and loudly popping on decell at closed throttle, and barking between shifts. I'm used to Guzzis that have a steady clean idle with both cylinders firing uniformly, especially once warmed up. I do vaguely remember something about a single throttle body in discussions, but is there no technique to balance air/fuel flows at idle?
 
and loudly popping on decell at closed throttle, and barking between shifts. I'm used to Guzzis that have a steady clean idle with both cylinders firing uniformly, especially once warmed up. I do vaguely remember something about a single throttle body in discussions, but is there no technique to balance air/fuel flows at idle?
Check the exhaust header bolts and/or the crossover tube under the bike for (very common) cracks around the brace plates. There are no air/fuel screws to touch, again single throttle body ride-by-wire. Everything is handled electronically. The motor is rubber mounted, and a big part of the un-smooth operation IMO is the single throttle body. Only solution is my adaptive individual cylinder mapped full fueling kit; https://www.guzzitech.com/store/product/gt-rx-pc-v-at300-ecu-flash-tool/ - expensive but oh so worth it.
 
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