sorry to ask this but, by: ramblinman - Apr 1, 2015 8:05:58 GMT -6 cdoublejj likes this Back to Home Reply Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by ramblinman on Apr 1, 2015 8:05:58 GMT -6 i do not know the accuracy but this is the only info i have found. think it is on page 14.www.deejayssmokepit.net/Scooter/Manuals/OtherScooters/GY6-50cc-150cc.pdf