how do i install new rollers into gearing speedfight 2?

standard rollers for a 50cc ped are 6.5's what you will need is 4.7's you need to take the engine casing off find a tool to stop the big cog from turning as u try undo the nut in the middle after you have done that the varietor will cum off behind that is where the rollers go replace old for new reverse the way you took everything off but putting it back on then you should be away

steve b
October 2007