View single post by subwoofer
 Posted: 05-31-2011 05:28 am
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Joined: 04-01-2008
Location: Sandefjord, Norway
Posts: 583
There's your problem then, and probably the source of all the observed misbehaviour!

Both pairs of butterflies should be very nearly closed at idle, and the whole point of balancing is to make them move in unison.

I guess the linkage on the front carb has been disassembled at some point and not put together correctly. At this hour (6:20am) I can't remember how the linkage is connected to the throttle axle, so I can't tell you exactly how to fix it, but I don't think you need to take the carbs off.