Its easy to do because you are not controlling the carbs with flexible bowden cables...both carbs are locked together...the throttle levers on both sides are not symetrical either the distance of the pivots are a half a hole out when using this. Its all done of course in the design but this is also a trap..both carbs are not synced properly even from the factory There is a slight difference due to the offset. We compensate for that with this solid bar sysem