28mm air cooled carb on a 4L0 Jun 7, 2021 12:52:27 GMT 1 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by chrisg on Jun 7, 2021 12:52:27 GMT 1 Hi, Is anyone using 28mm carbs from an aircooled bike? Im wondering if there are any power gains and what size jets to use, if its doable.