I spent some time very carefully balancing the throttle bodies on mine (using the screw that must not be touched according to the manual) quite early on in ownership. I closed the air bleeds completely and set the balance at 3k rpm by using the cable adjuster to "set" the throttle to hold the revs. Mine wasn't far out, but possibly enough to make a difference. I kept a check on the TPS (via the dash) throughout the procedure and it never altered, so just adjusted the balance between the throttle bodies and didn't affect the TPS reading. Once back on idle, I checked the balance and fine tuned a little with the air bleed screws. Virtually no adjustment was needed on those. Mine runs very smoothly and has never suffered from the lean surge at about 2800rpm like some have reported.Â
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The above procedure is pretty much what Moto Guzzi specify to balance the TBs on my V11with a couple of exceptions for setting the TPS which is set mechanically by voltage reading on the MG.
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The above procedure is pretty much what Moto Guzzi specify to balance the TBs on my V11with a couple of exceptions for setting the TPS which is set mechanically by voltage reading on the MG.