Big Bore install vid/start to finish. by: larrball - Dec 23, 2013 22:40:23 GMT -5 Back to Home Reply Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by larrball on Dec 23, 2013 22:40:23 GMT -5 This is for the 139Qmb 50 cc Stock to a BBK. [45 min's]----------------------------------------------------------------------------------------------